True caller App Built Using | What are the apps required to build an app like true caller

True caller may looks like a simple app on frontend , but on back end it is build using a list of following apps and APIs.

Android Open Source Project Android Jetpack

Google Play Services
Firebase
Google Drive API
libphonenumber
Gson
Material components
Google Play Billing Library
Play Install Referrer Library
Google ML Kit Auto value
Guava
Apache Commons Lang
Android actors
JSR-330: Dependency Injection for Java
Apache Avro lite
gRPC
OkHttp
Retrofit
InMobi Android SDK
Mopub Android SDK
Facebook Android SDK
Facebook Audience Network
ShortcutBadger (fixed Nova crashes and added Xiaomi support)
HPPC
joda-time-android
Dagger2
Lottie
Google ads mediation adapters
DeepLinkDispatch
Kotlin
Kotlin coroutines
RxJava
RxAndroid
Barcode Scanner
Pin Entry EditText
Circle ImageView
Secure Preference
CleverTap
Bubbles for Android
Android transcoder
TapTargetView
Emoji material
Agora
Konfetti
Glide
android-visualizer
tenor-android-core
Money View SDK
AppsFlyer SDK
ExoPlayer
FlexboxLayout