I need a(n) App Developer(s), to build for both iOS and Android preferably.

My existing basic iOS app live version can be found here: [login to view URL] Looking to have my app rebuilt professionally (this was a beginner hobby project for me, so existing code is messy!), and ideally I'd like for it to be cross-platform. I am open to discussing both native and hybrid. Current development version has: -rebranding -altered basic functionality -user log-in (firebase auth) Also looking to implement: -apple subscription for paywalled content -user ability to leave reviews of locations The single main feature is that of a simple local tourism directory (data is server based), with a few other functions. Nothing out-of-the-ordinary I don't think, and I am looking to discuss and receive quote for outsourcing the project. Likelihood of ongoing development work on the project is high.