Open source libraries used:

OkHttp: https://square.github.io/okhttp/

Retrofit: https://square.github.io/retrofit/

Moshi: https://github.com/square/moshi

Unbescape: https://github.com/unbescape/unbescape

Android youtube player: https://github.com/PierfrancescoSoffritti/android-youtube-player

Android gif drawable: https://github.com/koral--/android-gif-drawable

TouchImageView: https://github.com/MikeOrtiz/TouchImageView

TextDrawable: https://github.com/KgTeknolojiOSS/TextDrawable

ShortcutBadger: https://github.com/leolin310148/ShortcutBadger

Badger: https://github.com/v2rc/Badger

PermissionsDispatcher: https://github.com/permissions-dispatcher/PermissionsDispatcher

ExoPlayer: https://github.com/google/ExoPlayer

Crux: https://github.com/chimbori/crux

Scribe: https://github.com/scribejava/scribejava