We have customers asking for apps that can run on both iPhone and Android. I realize this will mean two different development projects, but wonder if anyone has any advice/crea
You can use a mix of cross-platform HTML5/Javascript for the web-ifiable (in looks and performance) UI parts of the app, and plain ole C (which is both a subset of Objective C, and available in Android through the NDK) for the OpenGL/data/number crunching parts with high performance requirements. The native UI parts may just have to be redesigned for the native platforms and (re)written twice.
Check out PhoneGap
PhoneGap allows you to develop apps using HTML, CSS and Javascript for a range of mobile devices
Below are the list of Crossplatform frameworks to use for building hybrid mobile applications :-
1.) Flutter by Google 2.) Ionic 3.) Phonegap with cordova by Adobe 4.) React Native by Facebook 5.) Appcelerator’s Titanium 6.) Meteor.JS 7.) Sencha Touch 8.) JQuery Mobile 9.) NativeScript 10.) Rachet 11.) Mobile Angular UI
Get more useful detailed information of each framework with links on below link : -
https://www.dcdroid.com/2018/07/all-about-beacons-and-its-development.html
http://www.appcelerator.com/
http://www.sencha.com/products/touch/
and PhoneGap is good too