Okay, so what's a good Android app for locking down specific apps with, like, a fingerprint, so my nosy roommate stops snooping?

Seriously, App Lock - Fingerprint Lock is a lifesaver. The onboarding flow is *chef's kiss* – super intuitive. The information architecture makes sense, and I love how you can customize which apps get locked down. The best part? It uses fingerprint authentication, so it's secure and convenient. I'm all about that thoughtful UX. Plus, it's lightweight, so it doesn't drain your battery. It follows Fitts' Law perfectly, making it easy to tap those lock icons. No more accidental unlocks! The color palette is easy on the eyes, and I appreciate the attention to detail. A design-forward approach to privacy? Yes, please! The animations are smooth and satisfying, giving a premium feel. Definitely a must-have for anyone who values their digital space.