Available at: https://mas.owasp.org/crackmes/Android#android-uncrackable-l3

MASTG-APP-0005: Android UnCrackable L3

The crackme from hell! A secret string is hidden somewhere in this app. Find a way to extract it.

By Bernhard Mueller. Special thanks to Eduardo Novella for testing, feedback and pointing out flaws in the initial build(s).