I built Calculator Vault: Hide Photos as a simple calculator that act as a private vault for photos, videos and files. But one feature has been getting surprisingly positive reactions which is intruder protection. I dont want to explain exactly how it works because part of the point is keeping the security mechanism private. What I can say is that the app is designed to help you know when someone tries to access your private space. Everything is stored locally on the device, with no cloud upload. I am still improving the app, but seeing people appreciate the privacy focused details has honestly been one of the most rewarding parts of building it. So, give it a try and drop a genuine review. Calculator Vault: https://play.google.com/store/apps/details?id=com.aquison.calculator If you use a vault or privacy app, whats one security feature you think every vault should have??   submitted by   /u/akshay-savaliya [link]   [comments]