CloudLocker is a free Android app developed by CloudVeil that allows users to block access to installed apps. The app requires an account on CloudVeil.org to function and uses the Device Administrator permission to control certain features on the device. CloudLocker also uses Accessibility services to detect when an app is launched.

The app offers several features such as disabling the camera, force-locking the phone, and wiping data in case of unauthorized removal attempts. Additionally, it attempts to collect information such as the device's phone number, list of installed apps, and time spent in apps to assist with managing installed apps and providing usage accountability.

However, it is important to note that on some devices, blocked apps may not show up in the launcher and the app must be uninstalled to make them visible again. Also, once the device administration functionality is activated, a password is required to disable it without wiping the device. If the password is misplaced or forgotten, users can contact CloudLocker support for assistance.

Overall, CloudLocker is a useful app blocker that provides additional security features, but users should be aware of its limitations and carefully review the personal data collection policy before use.