2024-03-19 00:00:00 Are you looking for a Calculator Lock app that helps you to hide photo, video and other files? Welcome to the Calculator Vault - Hide Photo app, it provides security to your photos, videos, audios and other files. You can easily hide them in the vault and view hidden photo or video by entering your password, pattern or fingerprint lock. Calculator Lock & Hide Photo app is armed with super amazing Caller ID feature which provides you the caller's information if you haven't saved their number.