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App summary
Privacy Master — Hide & AppLock is a free Android utility from Privacy Security Lab that focuses on protecting personal data. It’s a compact, professional-grade tool (about 1.7 MB) designed to help users keep photos, videos, notes and app usage private with minimal footprint on the device.
Core functions
- Lock individual applications (works with popular social apps such as WhatsApp, Facebook and Messenger)
- Encrypt and conceal personal media and notes stored on the phone
- Provide a private browsing experience with built-in tracking defenses
- Remove traces of activity and clean notifications to reduce leakage risks
How it protects your browsing and history
The app includes a private browser mode that actively blocks elements of web pages which may be used to track you. In addition, it offers automatic cleanup of browsing records so surfing history isn’t left behind.
Notification and trace cleaning
Privacy Master can hide sensitive notifications and perform cleanup of usage traces so sensitive information does not appear on the notification bar or remain in other retrievable logs, helping reduce accidental exposure.
Usability and accessibility
Despite its small size, the app uses Android Accessibility services to streamline interactions and make protection features easier to use. The design emphasizes simplicity, making it approachable for non-technical users while still offering robust privacy controls.
Why pick this app
Compact, easy to use and focused on core privacy tasks, Privacy Master — Hide & AppLock is a reliable choice for people who want straightforward protection for their device without a large installer or complicated setup.
Technical
- Android
- Free