Hi,
Thanks for sharing the requirements.
I will develop an android app to accept people's login and based on a games tournament app. It will be helpful if you provide more details to implement the solution.
I can enrich your mobile app with the following features with respective technologies:
Live Chat Messages: XMPP, Sockets, Firebase
Push Notifications: Firebase, Parse
Crash analytics: Firebase, Apps Flyer
App Analytics: Apps Flyer, Google Analytics
Revenue Features :
Monetization (Revenue): Admob
In-App Purchase: Via Google or Apple
ASO: App Search Optimisation
Installs & Reviews: Will bring first 10 good feedbacks for the app
Performance Integrations:
Model / Architecture : MVVP
API's : REST/ SOAP , JSON
Database : Realm , SQlIte
Graphics : Vector, Scalable Graphic Image