AppLock mobile application

AppLock is a prominent privacy-focused mobile application designed for Android devices, primarily developed by DoMobile Lab. It is recognized as one of the most downloaded privacy tools globally, providing users with the ability to lock specific apps, photos, and videos using PINs, patterns, or fingerprint authentication. The application serves as a critical utility for users seeking to enhance their mobile data security against unauthorized access.

Technically developed and maintained in China, the brand has expanded its footprint through global app stores. The brand and its underlying software remain under the ownership of DoMobile Lab, a tech company headquartered in Hong Kong. As of 2026, the brand continues to operate as an independent entity within the mobile utility sector, focusing on digital privacy and system optimization tools for a worldwide audience.