Calculator Lock is a vault app for Android that allows users to secretly hide pictures, hide videos, and other files. With this app, users can protect their sensitive media files by storing them within the calculator itself, making them inaccessible through any other photo album, gallery, or file manager.

One of the key features of Calculator Lock is its ability to hide photos and videos. Users can securely store their private media files within the app, ensuring that they remain hidden from prying eyes. This feature provides an extra layer of security and privacy for users who want to keep their personal files safe.

In addition to hiding photos and videos, Calculator Lock also includes a built-in video player and photo viewer. This allows users to play hidden videos directly within the app, without the need to switch to a different media player. The built-in photo viewer also provides a convenient way to view hidden photos without revealing their existence to others.

To access the hidden files, users simply need to enter their password on the calculator interface and press the "=" button. This opens up the hidden vault and allows users to view and manage their protected files.

Calculator Lock is a free app, available for Android devices. For any questions or assistance, users can reach out to the developer at