Apkpass ((free)) -

: Tools or services that can bypass or crack passwords of APK files pose significant security risks. They can facilitate the spread of pirated apps, enable unauthorized access to sensitive data within apps, and compromise the integrity of app ecosystems.

“Small World, Small Risk? The Security of Third-Party Libraries in Mobile Apps” Authors: Machiry, et al. (2017) Key Contribution: While focused on libraries, this paper details how API keys and hardcoded credentials often end up inside compiled APK files. Why it helps: If you are looking at "apkpass" from a reverse-engineering perspective (finding secrets inside an APK), this paper explains the mechanism of how those secrets get there and the risks involved. apkpass