hybrid application for web browser and android / ios

Question

I want to create a webapp that will allow to publish preditions for tips betting sport -  event and tip with stake. 
Public for those who register and special only for vip members
vip is a paid subscription option for a specified time.
Statistics in the form of public information on previous forecasts.

I choose the match and include preffered tip for me and then publish it.
Of course, before publishing I choose his type (public, vip)
Automatically updates the result and the validity of the coupon using api. Finally, add an event to the statistics.

Fronted something like this: app.bettology.com

ionic, angular, react native
what to choose ?
I know html, medium php and java basics.