Free lance java projectspráce
Need a expert proposal writer for upwork and freelancer for digital marketing and web projects.
Programming Languages: Python | CSS | C | HTML | Java | SQL | C++ | JavaScript • Software and Tools: Google Analytics | MS Office | Microsoft Power BI | Jupyter Notebook |Alteryx | Tableau • Coursework: Programming and Data Structures | Transform Calculus | Data Structer and algorithms INTERNSHIPS Software Development Intern | Atoll Solutions Pvt Ltd [Jun '23- Jul '23] • Spearheaded Atoll Kinesis enhancement by achieving a 20% scalability boost with innovative features in Iot tool. • Applied agile principles, enhancing decision-making in IoT solutions, boosting satisfaction ,streamlining operations. • Fortified Atoll Kinesis with innovative security measures, ensuring data integrity,thwarting potential vulnerabilities Data scientist | AntWalk &bull...
K zobrazení podrobností se zaregistrujte nebo přihlaste.
I need to promote a free income tax filing service provided by Kleernest Solutions. This initiative is sponsored by ORGDH, a nonprofit organization, and targets individuals across various platforms. Key Requirements: - Promotion through Social Media, Email Campaigns, and Local Community Events. - Targeting individuals specifically. - Conveying the primary message of a Free Tax Filing Service. Ideal Skills: - Proficiency in social media marketing and email campaign management. - Experience in community event promotion. - Excellent understanding of targeting strategies. - Ability to effectively communicate the primary message.
I'm seeking a seasoned sales consultant to help acquire both Web and Mobile development projects. Your primary target industries will include IoT apps, Startup companies Key Responsibilities: - Identify and engage with potential clients in the aforementioned industries - Leverage networking events to build relationships and secure projects. Ideal Skills and Experience: - Proven track record in sales, particularly in the tech industry - Strong networking skills and connections within the target industries - Experience with Web and Mobile development projects is a plus. This project is perfect for a sales professional who thrives in a tech-oriented, fast-paced environment. Your ability to leverage networking events will be key to our success.
I need a skilled Java Spring Boot developer for creating a REST API service. This application will primarily manage product data. Bangalore or Hyderabad based are preferred Key Features: - Implementing Authentication to secure the API - Conducting Data validation to ensure data integrity - Enabling CRUD operations for full data management - MySql data base handling from Java and respond to Web and Mobile applications using APIs Ideal Skills: - Extensive experience with Java Spring Boot - Proficient in designing and developing REST API services - Strong understanding of implementing Authentication and Data Validation - Skilled in CRUD operations - Experience working with product data
I'm looking for a designer who can create a fun, engaging flyer and invitation promoting a phone-free movement. The tone should be reminiscent of an 80's infomercial, presenting joining the movement as a challenge. The design should be filled with bold, bright colors, retro fonts, and vintage graphics. Ideal Skills and Experience: - Proficient in graphic design, with a deep understanding of 80's design aesthetics - Experience in creating fun, engaging, and challenging promotional material - Ability to work with bold, bright colors and retro fonts - Skill in incorporating vintage graphics in a modern context. i created something, but i dont like it at all.... need to make better and have more items for same campaign
We're seeking an experienced Web Developer for two exciting website development projects: Project 1: Subscription-Based Video Editing Platform Development of a service subscription platform Implementation of a credit purchase/payment system User account management Secure payment gateway integration Dashboard for service tracking Project 2: Event Management Website Online booking system development Event calendar integration Telegram API integration for notifications and updates Payment processing capabilities User-friendly booking interface Administrative dashboard Automated Telegram notifications for bookings and updates Required Skills: Strong experience with full-stack development Payment gateway integration expertise Database management UI/UX best practices Security imp...
...Experience with integrating various ad types (Banner, In-Article, Video). Familiarity with custom code/scripts for ad integration. Please provide examples of similar projects you’ve completed. --- 1. Main Objective of the App: Display ads within articles published on the platform (via Google AdSense or other ad platforms). Provide a rewards system for users based on watching ads and referring friends. --- 2. Core Features: A. Subscription Plans: Free Plan: 30 ads per day. $0.01 per ad viewed in full. Paid Plans: Provide more ads or higher rewards per ad. B. Referral Rewards: $0.25 (25 cents) for each successful free referral. $1.5 when the referred person activates a paid membership. Refund of subscription when a team of 6 referred peo...
I'm in need of a proficient app dev...proficient app developer who can create applications for both iOS and Android platforms. The apps can vary across different categories, from social media to e-commerce to productivity tools. Ideal Skills and Experience: - Extensive experience in Flutter, React Native, or similar cross-platform app development frameworks. - Strong proficiency in both iOS and Android development languages (Swift, Kotlin, Java). - Previous work in creating diverse applications is a plus. - Familiarity with integrating key features such as user profiles, payment systems, and push notifications is desirable, though not mandatory. Please note, the specific features and intricacies of the app will be determined collaboratively. I'm open to discussing poss...
I'm in need of a seasoned Java Developer or Full-Stack Developer, primarily with robust experience in Java and Spring Boot. The task is to implement functionalities in a web application that includes creating, updating, and deleting resources. A crucial part of the job is to develop and integrate role-based access management, specifically with an Admin level. Key Requirements: - Expert in Java with substantial Full-Stack Development experience - Proficient in Spring Boot framework - Strong understanding and experience with role-based access control (RBAC) principles - Familiar with modern tools and frameworks for building secure, scalable applications - Experience implementing JWT (JSON Web Tokens) for authentication - Previous work with web applications I'...
I'm looking for an experienced architect who can design a variety of projects including commercial buildings, public spaces, and building facades. The projects will also include swimming pools, schools, and kindergartens. Key Responsibilities: - Full design of commercial projects such as hotels and schools - Facade design for various buildings - Landscape design for public spaces Ideal Skills: - Extensive experience in designing commercial buildings and public spaces - Proficiency in facade and landscape design - Creative and innovative design approach - Strong understanding of swimming pool and school design - Experience with designing for kindergarten spaces is a plus.
site dizaynı yapılacak en az 2 yıllık tecrübesi olan arkadaşlar iş için kabul edilecek
I'm in need of a 3D VFX Artist to take my half-decent model of a TV and transform it into two slow-motion shots of the TV for a music video. The first shot: The TV levitating off the table and beginning to explode. This shot... - Render about ten seconds of runtime total, 5s per shot. - Include high-detail debris in the explosion. Skills and Experience: - Proficiency in 3D modeling, animation, and compositing - Experience in creating photorealistic VFX - Ability to interpret and enhance a provided model Files are here: Please feel free to reach out if you need additional materials to make the shots better, happy to provide additional images of the real TV and other shots from the video to provide context.
+ Add Recaptcha to Reviews Form, both sites + Remove Recaptcha from Reviews, both sites + Add the option to delete multiple reviews in the admin panel + Products page: add text "Max zwei pro Benutzer" to free products depending on their quantity + Some HTTP redirection and maintenance tasks.
...Frontend Admin Panel Expected Deliverables Defect-Free Code: Code delivery must meet a zero-defect standard following SonarCloud scans. SonarCloud Report: Provide a detailed SonarCloud defect report for each code submission, highlighting identified issues and their resolution status. Agile-Ready Code Updates: Ensure continuous delivery of updates aligned with Agile sprint planning. Documentation: Include deployment instructions, technology configurations, and an explanation of fixes applied. Acceptance Criteria Zero Defects: Code is free of critical and major defects as per SonarCloud standards. Functional Compliance: The delivered code must function seamlessly across the defined technology stack and tools. Timely Updates: Regular, defect-free updates are p...
I'm looking for a developer to fix my frontend and take a look at the backend. The backend is all completed but just to make sure its all good and bug free. The website will deal with money and crypto coming in and out. The crypto will be deposited and withdrawn through a 3rd party API we just connect it. Users will be able to deposit and withdraw, play house games, chat etc.
...currency and its exchange rate to USD. 3. Transportation options (e.g., buses, taxis, trains) and their approximate fares. Revenue Model The website will generate revenue through the following methods: 1. Advertisements: Ads from travel websites, airlines, hotels, etc. 2. Premium (Pro) Version: • A subscription-based option that includes exclusive features and removes certain limitations for free users. What I Need From You As a freelancer, I would like to understand the following: 1. Timeframe: How long will it take to complete this project? 2. Resources Required: What tools, frameworks, or additional resources do you need to deliver this project? 3. Costs: What is your estimated cost for building the website? Key Expectations The website should have a modern a...
After upgrading from JSF 1.1.0 to JSF 2.2.0, my JSP screen is displaying twice upon initial load. This issue is isolated to a specific JSP page, and no recent changes have been made to the JSP or its associated Java code. We are currently running on java11 and tomee8.0.6 server. Ideal Skills: - Extensive knowledge of JSF and JSP - Proficient in Java and familiar with Java 11 - Experience with debugging in tomee server - Strong problem-solving skills and attention to detail
Software Developement preferrably in Greece using Java for ticket issuing project. Dear Sirs, We describe below the need to build a ticket issuing software (preferably Java). Below the requirements of this specific project. · It will accept two banknotes (5 €, 10 €). · It will accept coins 0.1 €, 1 €, 2 €. · It will give change in banknotes and coins. · It will accept a debit card. · It will issue 4-5 different tickets, Standard ticket 2 €, Ticket 1 €, Ticket 0.70 €, Parcel Ticket, and small trip ticket. · They will be printed on 80 mm thermal paper, which will also be a tax receipt. · The ticket that will be printed will be individual or group. · On a daily basis...
I'm working on a web-based e-commerce application, and I need a skilled coder proficient in Java, and ideally Python, to assist with the project. The scope of work could involve: - Developing key components of the application using Java and Python - Troubleshooting and debugging issues to ensure smooth functionality - Collaborating with the team to implement coding best practices Experience in e-commerce site development and understanding of typical e-commerce features would be advantageous. Skills in coding, problem-solving, and teamwork are crucial for the success of this project.
Project Overview: We are seeking a talented freelance developer or development team to design and build a custom HR software solution tail...access for employees and administrators. User Interface: Simple & Intuitive UI: Create a user-friendly interface for employees to clock in/out, check attendance, and view pay details. Admin Panel: Develop an admin dashboard for HR to manage payroll, attendance, and generate reports. Technical Stack: Frontend: HTML, CSS, JavaScript (React or Angular preferred) Backend: Python (Django, Flask), Node.js, Java (Spring Boot), or Ruby on Rails Database: MySQL, PostgreSQL, or similar Integration: Payment gateways, tax APIs, and email/SMS notifications (as needed) Previous work experience in HRMS tool is highly preferred , must be able to show the ...
Installation & Publish Of 6amMart Application (codecanyon) - Web + App Platform: Both web and app on VPS 1. To live react website live 2. To make sure on functionalities and bug free operations 3. To install user, store, delivery app on playstore We are looking for a skilled developer to install & make bug free working the 6amMart application which you can find on Codecanyon, on both web and app platforms. The ideal candidate should have experience in web and app development, with knowledge of ios & Android platforms. Requirements: - Experience in web and app installation - Proficiency in iOS and Android platforms - Familiarity with custom integrations - Knowledge of database setup - To Publish the app in Playstore alone & Generate apk for ios The c...
I am in need of an expert to access our Jenkins server and modify the script for our Java multi-application environment. This includes creating .exe and Windows-compatible installers for all three of our applications, which have recently been migrated to Java21 and JavaFX21. The script is written for bash, and run into a windows jenkins agent. Key Tasks: - Fix issues with the current Jenkins script, particularly the obfuscation step using Proguard. - Propose and implement a new and other configuration files to ensure the applications can be installed and run successfully. - Create Windows-compatible installers for all three applications. The applications run perfectly in the Eclipse environment, so the issue lies solely with the Jenkins script and its configuration. Time is of th...
...structure and videos. • Sales pages. • Recreate these elements in Go High Level, including: • Building the course structure. • Uploading videos. • Rebuilding sales pages. • Test the system thoroughly to ensure: • Sales pages and course delivery are error-free. • Provide a brief handover document for reference. What We’re Looking For: • Proven experience with Go High Level (course creation and automations). • Familiarity with migrating systems from other platforms like Funneler. • Strong attention to detail and ability to deliver a polished, error-free system. • Availability to complete the project within the next 7 days. What’s Ready for You: • The Go High Level sub-account is set up and integra...
I'm looking for a skilled mobile app developer to create a productivity application for Android. Key Requirements: - Exceptional Android development skills with a focus on productivity apps. - Experience in creating user-friendly, efficient, and engaging applications. - Proficiency in Java, Kotlin, or relevant Android programming languages. - Ability to understand and implement best practices for productivity app design and functionality.
...and Windows-based servers handling Java connection packets. I suspect the issue is due to network congestion or malware activity. Task: Analyze the network to identify the source of congestion or anomalies. Set up a network monitoring tool to capture and analyze Java connection traffic. Provide a brief report with findings and recommendations. Requirements: Experience in network diagnostics and monitoring tools. Familiarity with Java application traffic. Familiarity with Oracle RAC environment. Screening Questions: Can you describe a past project where you diagnosed and resolved network congestion issues? Which network monitoring tools have you used, and how proficient are you with them? Have you worked with Java app...
I'm seeking a WordPress and LearnDash expert who can help me modify the display settings for closed courses. Currently, when a c...for closed courses. Please note that this task does not involve any design changes or custom styling. The content should be displayed using the default site styling. Use google chrome tranlsator for the website if needed. Website placed on develpment server so can be played around with Admin access provided There is a lot of code in php functions and there is a lot of custom development as in Java and so on, so that needs to be verified. Link to dev page: Refer to Images NOTE: The solution must be shared with us as this needs to be transferrable to another platform (not dev, live website)
As an advanced Core Java enthusiast, I'm looking for a mentor to further develop my skills with a specific focus on Object-Oriented Programming (OOP). The ideal candidate would have a strong background in teaching or mentoring, and be able to design and guide me through daily coding exercises based on real-world project tasks. Key Requirements: - Proficiency in Core Java and OOP - Experience in teaching or mentoring - Ability to create and guide through coding exercises Ideal Skills: - Core Java - Object-oriented programming - Mentoring/Teaching - Coding exercises design The focus will be on understanding and applying the principles of inheritance, polymorphism, and encapsulation. I am eager to tackle real-world project tasks that will challenge my abil...
...project is a key part of our company's strategy, and we need a professional who can help us create an attractive, functional, and goal-aligned website. (Spain) Project Requirements: Homepage Design: Optimized for lead capture. Centered around a "Get Started for Free" (PLG) approach. Structure of Main Pages: Home. Solutions. Industries. Customer Success Stories. Blog. Knowledge Center/Academy. Pricing. Podcast. Required Experience: Proficiency in designing on HubSpot CMS. Previous experience working with SaaS companies or PLG projects. Familiarity with examples like Miro, Figma, Slack, Factorial, SesameHR, and others. Creativity and the ability to suggest improvements based on benchmarks. Expected Deliverables: A functional, conversion-optimized websit...
We are seeking a highly skilled and experienced Java Developer with a proven track record in delivering high-quality applications. If you're passionate about building modern, scalable, and robust software solutions, we want to hear from you! Required Qualifications 7+ years of software development experience with a focus on delivering robust and efficient solutions. Strong proficiency in Java and its latest versions and expertise in developing Java-based applications. Hands-on experience with relational databases and proficiency in writing complex SQL queries. Familiarity with Enterprise Java (J2EE / JavaEE / Spring) application architectures. Demonstrated history of delivering modern, high-cadence applications using: Agile methodologies and test-driv...
I have a Java application that I need fixed. The source code is available, but the app experiences random crashes or errors during usage. Ideal skills and experience: - Proficiency in Java programming - Experience in debugging applications - Familiarity with Java application development I need someone who can diagnose the functionality issues and fix them to ensure smooth operation of the application.
I'm experiencing an issue with my Java application; it isn't displaying on the Android Auto screen when connected to my car. The app was functioning properly before this issue arose. Ideal skills and experience for the job: - Extensive experience with Java programming - In-depth knowledge of Android Auto - Proven track record of debugging and troubleshooting applications - Prior experience with car connectivity issues - Ability to deliver quick, effective solutions
...Responsibilities: - Design and develop a unique mobile game for the Android platform. - Ensure the game is user-friendly, intuitive, and has high replay value. - Implement in-app purchases, ads, and other monetization strategies if necessary. - Provide regular updates and patches to improve game performance and fix bugs. Ideal Skills: - Proven experience in developing mobile games for Android. - Proficient in Java and Kotlin, the primary languages for Android development. - Experience with game development engines like Unity or Unreal Engine. - Strong knowledge of UX/UI design principles. - Experience with implementing in-app purchases and ads. I am looking for a freelancer who can deliver a high-quality product on time and within budget. Please include examples of your previou...
I need an...server with Elasticsearch 8.x pre-installed. Your responsibilities: - Install all necessary components for the environment. The latest version of Gradle should be used. - Create a custom filter named test_sample_1 in Java. This filter will replace all occurrences of the character ‘a’ with the character ‘z’ in input tokens. - Compile the new plugin and install it in Elasticsearch. - Provide clear, recommended instructions for the compilation and installation of the plugin. Ideal skills and experience: - Extensive experience with Elasticsearch and Ubuntu server. - Proficient in Java, with prior experience in creating Elasticsearch plugins. - Familiar with Gradle and its latest version. - Excellent instructional skills, with ability to prov...
...exquisite range of bakery items. Key Features: - A shopping cart with a smooth checkout process: The website should have a user-friendly, efficient shopping cart system with a hassle-free checkout process. - Customer reviews: I want to integrate a section for customer reviews to enhance credibility and engage with our customers. - Social media integration: It's crucial for the website to have seamless social media integration to promote our products and brand. The ideal freelancer for this project should have extensive experience in e-commerce website development, with a strong portfolio showcasing similar projects. Skills in UI/UX design, SEO, and social media marketing will be a plus. Please submit your proposal only if you can deliver a high-quality, engaging si...
We are looking for an independent designer and frontend developer (freelancer) who excels in both design and front-end development. The current focus is to develop a new version of an online portal for a water purification system. Additionally, we have two other projects that require online support. What We Are Looking For: - Frontend Skills: Proficient in HTML5, Bootstrap 5, and jQuery. - Git: Experience with version control using Git is required. - Basic PHP Knowledge: Helpful for understanding our modularly built click demos. - Design Expertise: You can create designs that meet UI/UX requirements and improve existing screens/views. - Familiarity with Ticket Systems: Experience working with systems like Trello or similar tools (e.g., SCRUM-based workflows). - Communication: Commu...
Hello? I have a product developed in Android studio. * Development environment: Android Studio Hedgehog | 2023.1.1 Patch 2 - developed by JAVA * App usage environment: Android version 10 or higher * App purpose: Always display a small image on the screen. And get data from the server every minute and display it on the screen. (Using postDelayed()) I am currently having the following issues and would like to fix them. Issue: * There is no problem when the screen is on. * However, when returning from sleep / deep sleep mode, the image disappears and the process is terminated. (This varies depending on the mobile device, but the problem occurs when using it for about 10 minutes to 4 hours.) Request 1. The image should continue to be displayed when re...
I am aware of setting up a Python-based AI trading bot on a Windows or amazon server. Configure the code and database on the server, and add up API credentials f...on a Windows or amazon server. Configure the code and database on the server, and add up API credentials for BONKbot, which ensured the bot interacting correctly with BONKbot on Telegram The bot wil be capable to perform automated buy and sell orders based on its checks of selected coins. I am an experience for this job including such skills: - Tremendous knowledge of python programming and java scripts. - Experience setting up trading bots - Proficient in working with Windows or Linux servers and sql databases - Ability to configure and add API credentials I look forward to hearing back from you Sincerely, Parmin...
I'm seeking a seasoned sales consultant to help acquire both Web and Mobile development projects. Your primary target industries will include IoT apps, Startup companies Key Responsibilities: - Identify and engage with potential clients in the aforementioned industries - Leverage networking events to build relationships and secure projects. Ideal Skills and Experience: - Proven track record in sales, particularly in the tech industry - Strong networking skills and connections within the target industries - Experience with Web and Mobile development projects is a plus. This project is perfect for a sales professional who thrives in a tech-oriented, fast-paced environment. Your ability to leverage networking events will be key to our success.
Performing Bom and solar calculations for domestic system
Hi Myself Jyoti Dhake, Fashion & LIfestyle Accessory Designer from NIFT Hyderabad. I have creative and results-driven Product and Graphic Designer with over 8 years of experience in blending innovative design principles with user-centric solutions. Specializing in creating visually compelling and functional designs across various platforms. My background spans product design, graphics and underscored by a passion for aesthetics and a commitment to solving design challenges. Have year’s of experience in designing fields from different companies which includes from manufacturing to export/import to packaging designs. Had worked with different materials like mild steel, wood, glass, papers, marble, horn & bone. While working in different cities with different people, its easy to...
I'm seeking a proactive intern with a blend of Machine Learning and Fullstack Web Development skills, preferably located in Europe. The compensation is $400 per month for at least 6 months, fully remo...responsibilities: - Assisting in various AI tasks, predominantly focused on data analysis and natural language processing. - Contributing to both frontend and backend development of our web applications. The ideal candidate should have: - Proficiency in JavaScript, Java, and Golang. - Strong understanding and experience in Machine Learning. - Demonstrated skills in both Frontend and Backend Development. The intern will gain valuable experience working at the intersection of AI and Web Development, contributing to innovative projects and gaining hands-on experience in ...
I need an onsite mobile...need an onsite mobile app developer for a three-month project to create a native app for Android. The app should incorporate user authentication and push notifications, as well as interact with a Java API using Spring Boot. Key Requirements: - Expertise in native Android app development - Proficient in implementing user authentication systems - Skilled in integrating push notifications - Experience working with Java APIs and Spring Boot - Ability to deliver high-quality work within the stipulated timeframe Ideal Skills: - Native Android development - User authentication - Push notifications - Java API integration - Spring Boot I am looking for a dedicated professional with a strong portfolio in native Android app development who can bring t...
New Free Book Store Page/HTML Updates
I'm in need of a talented Minecraft builder to design and construct a hub area for my server. This hub will consist of two unique fl...Island: This should be a wintery paradise complete with ice sculptures, snowy trees and frozen lakes - Hell Island: This is a fiery landscape filled with lava falls and soul sand valleys - Pathways: I prefer a natural, organic style for the pathways, winding through the islands - Portals: These should be conveniently placed and seamlessly integrated into the design - Additional Elements: Feel free to incorporate any other engaging features that would enhance the user experience This project is perfect for someone who loves Minecraft and has a knack for creative building. Your contribution will play a pivotal role in creating an exciting hub...
...respectivas justificaciones. Mapas de red (lógico y físico) que muestren una red funcional para la empresa. Tecnologías: Hardware y software de computadoras. Redes informáticas. Herramientas de diseño de redes. Desarrollo del Juego Wordle en Java Descripción del proyecto: Se necesita un programador Java para desarrollar una versión simple del juego Wordle. El juego debe permitir a los usuarios adivinar una palabra de 5 letras en un máximo de 6 intentos, con retroalimentación por colores después de cada intento. Tareas: Desarrollar la lógica del juego en Java, incluyendo: Selección aleatoria de una palabra secreta de una lista proporcionada en un archivo de texto. Gestión d...
I found a Java-based trading algorithm on GitHub that I’d like to set up and run. The code is reportedly fully functional but includes some "TO DO" items. To get it operational, I believe the following steps are required: Complete the TO DOs – I will provide the tasks in English, which need to be translated into Java and implemented in the code. Integrate with real-time data – Connect the code to my broker’s price stream using their development guide (). Set up a database – Store the real-time price stream in a database. Enable data retrieval – Ensure the algorithm can access and process data from the database. Validate functionality – Run the code on a historical dataset (which I will provide) to ensure it works co...
We are in need of 2 logos, 1 large logo with more detail to go on the side of vehicles and signs and 1 smaller simpler logo to go on hats and clothing. Please submit both options separately We are a ranch that specializes in selling Speckle Park Cows, Apaloosa Horses, Bison, and Percheron Horses. Our name is Pierced Heart ...-Would like a heart either pierced by an arrow or something, maybe the heart has a cow and horse incorporated into it (speckle park, apaloosa, percheron) -Would also need our name Pierced Heart Livestock incorporated -Needs to be simple enough to be put on something as small as a hat We have attached some reference photos and a logo a friend made for us but we didn't really like it. Please feel free to try to come up with something different! These are ...
...de cargar la URL. Si no hay conexión, se mostrará un mensaje de error y un botón para reintentar. Almacenamiento de la URL: La última URL generada se almacenará localmente en el dispositivo para evitar que el usuario tenga que ingresarla nuevamente. Al iniciar la app, se cargará automáticamente la última URL guardada, si existe. Requisitos Técnicos Lenguajes de programación: Android: Kotlin o Java iOS: Swift Frameworks/Bibliotecas: WebView nativo para ambas plataformas. Biblioteca para manejar el almacenamiento local (SharedPreferences para Android, UserDefaults para iOS). Biblioteca para detectar la conexión a internet (ConnectivityManager para Android, NetworkReachability para iOS). Diseño: D...