The File Locker app by SmallCat Media is designed to keep your private files secure on your device. With a rating of 4.3 stars from over 2,300 reviews, it has gained popularity for its simplicity and effectiveness. Users can protect photos, videos, and documents using a PIN, pattern, or fingerprint lock, catering to various preferences.

While the app is free, it does contain ads, which might deter some users. The interface is functional but could benefit from a more modern design. Unlike some competitors, File Locker does not offer cloud backup, meaning if your device is lost, so are your files. This is a significant consideration for those who prioritize data recovery options.

For users looking for a file locking solution, this app performs well. However, it lacks the advanced features available in premium options. Overall, File Locker is keeping your personal files private, but those needing more features may want to explore other apps. More details can be found on their [official page](https://play.google.com/store/apps/details?id=com.sybu.filelocker).