Calculator Lock is a great privacy protection application for Android devices. With this app, you can easily hide photos and videos that you don't want others to see. It functions as a regular calculator, but also has a hidden feature that allows you to lock and manage your files securely.

One of the main features of Calculator Lock is its ability to hide files of various formats, including JPEG, GIF, PNG, SVG, DOC, PPT, MP4, MKV, and RAW. This ensures that your photos, videos, audios, and documents are kept 100% safe and confidential.

The app is disguised as a secret calculator, making it even more secure. It serves as a video vault, photo gallery lock, audio protector, and privacy guard for your personal information and media files.

Calculator Lock also offers additional features such as secret notes, a privacy browser, and the ability to restore hidden photos and videos. The app provides a simple, stylish, and easy-to-use calculator with all the regular and scientific functions.

Overall, Calculator Lock - Hide Photo is a powerful privacy protection application that ensures the safety and confidentiality of your files. It provides a great experience for storing your most private photos and moments. If you encounter any issues while using the app, the developer can be contacted via email.