App Locker Tools to Protect Private Apps and Data | 3
Update: Sep 7, 2026 · 1576 apps reviewed
App locker tools add a second layer of privacy by blocking access to selected apps with a PIN, pattern, password or biometric check. They are especially useful for messaging, banking, gallery and social apps that can reveal a lot in a few taps. The best options combine fast unlocking, reliable relocking after screen-off, and flexible controls for hiding notifications or covering app previews. Some also include intruder selfies, vaults for files and photos, or profile-based rules for shared devices. Choosing well means balancing convenience, security and how much control you want over what other people can open.
Top programs about App Locker
- 4.6
69 reviews
Private Zone - AppLock, Video is a freemium security app for hiding files and locking apps. It includes a booster and a file cleaner,…
- 4.5
8 reviews
Advanced App Security with Multiple Lock Options
- Lock apps with password, pattern, or fingerprint access
- Protect specific apps like WhatsApp and Facebook easily
- Secure photos and documents from unauthorized access
- Customize lock settings for complete device or app-specific security
Ideal for
- Privacy-conscious users
- Parents managing kids' device access
- Individuals safeguarding personal documents
Usability & Convenience
6 / 10Autofill, biometric unlock, browser extensions, and daily ease of use.Feature Breadth
5 / 10Password tools: generation, breach monitoring, secure notes, and 2FA management.Security Architecture
4 / 10Encryption approach, zero-knowledge design, and claimed audit history.
The app excels in providing robust security options for anyone needing to protect personal information, though extensive customization may require some time to set up.
Anthony John Padilla - 4.3
665 reviews
Free Privacy Protection with Biometric Security
- Hides visible apps from the homepage
- Biometric fingerprint scanner for access
- Locks contacts, social media, and SMS
- Media vault for videos and pictures
Ideal for
- Multi-user smartphone environments
- Biometric security without extra cost
- Selective app locking for privacy
Feature Breadth
6 / 10Password tools: generation, breach monitoring, secure notes, and 2FA management.Usability & Convenience
6 / 10Autofill, biometric unlock, browser extensions, and daily ease of use.Security Architecture
4 / 10Encryption approach, zero-knowledge design, and claimed audit history.
Free App Lock - Privacy Knight offers a robust solution for those concerned with privacy on shared devices, thanks to its biometric security and ability to lock specific apps. However, users should be aware of the requirement to activate Google Chrome and the potential for bugs.
Anthony John Padilla - 4.5
10 reviews
Easy Vault is an excellent app that helps you hide photos, videos, and other personal files that you don't want anyone else to see.This…
- 4.3
26 reviews
Secure Vaults for Apps and Media
- Password-protected vaults for files and apps
- Biometric authentication for added security
- Fake Cover and Intruder Selfie features
- System cleaner to optimize device performance
Ideal for
- Privacy-conscious smartphone users
- Securing personal photos and videos
- Preventing unauthorized app access
Usability & Convenience
7 / 10Autofill, biometric unlock, browser extensions, and daily ease of use.Feature Breadth
6 / 10Password tools: generation, breach monitoring, secure notes, and 2FA management.Security Architecture
4 / 10Encryption approach, zero-knowledge design, and claimed audit history.
LOCKit offers robust security features like password and biometric authentication to protect your private media and apps. While many smartphones already include similar tools, it provides additional peace of mind for those needing extra security measures.
Anthony John Padilla - 3.9
11 reviews
Advanced Locking Mechanisms for Enhanced Privacy
- Remote lock and unlock via SMS
- Supports pattern and random password unlock
- Auto-lock for newly installed apps
- Break-in alerts with photo capture
Ideal for
- Privacy-conscious smartphone users
- Frequent app installers
- Users needing remote device access
Feature Breadth
5 / 10Password tools: generation, breach monitoring, secure notes, and 2FA management.Usability & Convenience
5 / 10Autofill, biometric unlock, browser extensions, and daily ease of use.Security Architecture
4 / 10Encryption approach, zero-knowledge design, and claimed audit history.
Smart App Protector offers robust security features ideal for those prioritizing app privacy. While it excels in locking capabilities, occasional crashes and fingerprint issues can be a drawback.
Anthony John Padilla - 4.2
10 reviews
Are you an Android user who admires the sleek aesthetic of iOS devices? If so, iOS 17 Launcher with App Lock, a free application…
- 4
1 reviews
With the help of the excellent privacy protection and data encryption app Gallery Lock-Secure Folder App, you may effectively hide photos, recordings, videos, and…
