General Info
adb
File system
Writing apps
Activities and Intents
Deeplinks
Check for apk signature
Retrieving apk from a device
Viewing app certificate
Lab setup
Shared preferences
Decompiling apk
Patching apk
Identifying App technology
Identify packers / obfuscation engines and potential roadblocks
View logs
Scan the app without having it (BeVigil API)
Nuclei templates