Hello,
I'm Ken from Silver AIM. I'm HTML5 game developer with 5+ experience on build web/application/mini games.
I can help you on your project with one solution for all platform as you want. I can implement your game in web, after that I can build it to Android app as APK (Android) or IPA (iOS) include adMob or not, even I can help you on make it as application execute on window/Mac/Linus too if you request. Beside , with my experience, I can suggest or help you on gameplay, UX/UI.
Please contact me for more details.