Build a simple 'one screen Android application'

One screen application for adding events from: [login to view URL] General: 1. Build one page app, with all (or at least: down, sunrise, letest shma, letest morning prayers, latest afternoon prayers, shkia, nightfull, midnight, candle light, fest start) the events types (with all repeat periods) from the URL: [login to view URL] 2. Next to each event, build a button for add (when not added) and remove (when already added) from user's calendar. 3. Enable using full calendar's events functionality for the events added (for each repeated event). Actions: 1. Add events to calendar: 1.1. All events from the same type (even if they occur on a different time and/or date) 2. Remove events from calendar (it can be implemented from the App or by enable the removal from the calendar itself for each event type): 2.1. All events from the same type (even if they occur on a different time and/or date) Features: 1. Any event added by the app, will be editable in the calendar, as a repeat event, (one for any event type) with calendar's remainders (alert some time before any event instance). Properties: 1. Basic graphic design, clean look. 2. Basic UX\UI optimizetion, intuitive interface. 3. Support all common android smartphone devices. 4. The app will be fully ready and compatible for 'PLAY' (Google's applications store). Product: 1. Full Source code with comments in English, design files etc. (if there are any) and a fully PLAY compatible and operational APK. Note: this is only the first version for this app, we will probably like to extend its functionality and properties very soon. We prefer using 'React'.