As coding portfolio - A try on mimicing Coupgon App using my own implementation.
Animated Screenshot(take couple secs to load): (Left: Koupgon, Right: Coupgon)
GoogleService-Info.plist and Pods are required for build but not included in this public repository.
App installation available throught HockeyApp, register your devices by opening https://rink.io/sKzBmBG in your Android or iOS browser.
The app uses firebase to handle authentication and images storing.
Contact author for setup instruction.