CM Locker (Secure & Boost )

Protect your Android device with a secure screen lock app that combines military-grade security with powerful performance optimization tools. CM Locker (Secure & Boost) is the world's #1 lockscreen application, trusted by users across 230+ countries and consistently rated 4.7 stars for its unmatched blend of customization, speed, and safety features.

Take full control of your device's appearance with extensive customization options. Add a personal avatar to your password pages, choose from multiple layout designs that perfectly match your phone's aesthetic, and customize wallpapers from your album to create a truly unique lockscreen experience. Every detail reflects your style while maintaining robust security.

Boost your phone's performance directly from the integrated toolbox. Experience up to 100% speed improvements by cleaning battery-draining apps, extending your battery life by approximately 30% and reducing overall memory consumption. The lightweight application package installs quickly without slowing down your device, backed by the proven Phone Booster technology from Battery Doctor.

Security is paramount. The Intruder Selfie feature automatically captures photos of anyone attempting to access your phone with incorrect passwords, giving you real-time protection against unauthorized access. CM Locker is supported by CM Security, which has been ranked #1 by AV-TEST for seven consecutive years, ensuring your personal data remains safe from threats.

Stay connected without compromising privacy. Quick notification reminders give you instant access to new messages from WhatsApp, Facebook Messenger, Viber, Line, WeChat, and other instant messaging apps. Enable private mode to hide sensitive message content as needed. Control music playback with intuitive one-handed operations, access your camera instantly with the built-in shortcut, and use the convenient handy toolbox featuring flashlight, calculator, brightness controls, and recent app access. Weather forecasts keep you prepared for what's ahead.

With minimal resource usage and user-friendly design appreciated worldwide, CM Locker (Secure & Boost) delivers professional-grade security and performance enhancement in one elegant package.