It also use for app lock secretly inside app. This App also use as Calculator. Calculator Vault App is not visible in your phone as APP LOCK app like your old App lock. It looks like a simple calculator app and you can also Used it for calculation. Open Calculator Vault App by Arithmetic Calculation: For example your set password is ‘4444'.
The download of Calculator Vault Gallery Lock doesn't contain viruses or any kind of malware. This application is developed by Mantra Meditation Music and its category is Personalization. The app has been downloaded and set up by over 100K users and its latest update was released on Dec 27, 2017.