Glide

https://raw.githubusercontent.com/bumptech/glide/master/LICENSE

ExoPlayer

https://raw.githubusercontent.com/google/ExoPlayer/release-v2/LICENSE

FirebaseUI-Android

https://raw.githubusercontent.com/firebase/FirebaseUI-Android/master/LICENSE

Spotlight

https://raw.githubusercontent.com/TakuSemba/Spotlight/master/LICENSE

DochódZakupy-android

https://raw.githubusercontent.com/RevenueCat/purchases-android/master/LICENSE

Readability4J

https://raw.githubusercontent.com/dankito/Readability4J/master/LICENSE

Facebook Android SDK

https://github.com/facebook/facebook-android-sdk/blob/master/LICENSE.txt–

OkHttp

https://github.com/square/okhttp/blob/master/LICENSE.txt

Segment Android Analytics

https://github.com/segmentio/analytics-android/blob/master/LICENSE.md

FolioReader

https://github.com/FolioReader/FolioReader-Android/blob/master/License.md