There are times when a mobile phone blocked via PIN or biometric systems is not enough, nor is it enough to use different folders and screens to organize and keep certain files on our phone out of sight. In these cases a cover application can come in handy so that, under something as mundane and boring as a calculator or a clock, your photos, contacts, documents are hidden. These are the most interesting ones that you can download and install on your phone or tablet.
Calculator#
Calculator# is an application available for iOS and Android that allows you to hide any information on your phone under a calculator interface: photos, videos, contacts, documents, audios…
Beyond its appearance, it has password protection, which you will have to enter on the classic calculator keyboard to have access to everything. And if you forget it? It has a recovery tool.
Be careful because it includes some kind of panic switch that allows you to change the application simply by shaking your mobile.
Secret Calculator Vault

Secret Calculator Vault’s mission is to hide any application, contacts, multimedia files, messages or even export passwords under the guise of a calculator. Once you access using a password, you can organize them as you wish, with folders and labels. Of course, if you do not pay, the storage limit is limited.
Secret Photo Vault

This application available for iPad and iPhone saves photos, videos, passwords, contacts, and even browser information under the guise of a calculator. It does not use external servers, but rather uses the internal storage of the deviceso your documents won’t leave your tablet or phone.
This information is important because if you delete the application, you will delete everything it contains, so it is better to export everything before. The barriers to entry (appearance aside) are three: PIN, TouchID and FaceID. With a simple interface that is easy to use, to get the most out of its potential you will have to checkout (although there is a week of trial).
Calculator Vault: App Hider

Calculator Vault is the vault application par excellence within the Android ecosystem. It acts as an application launcher hidden behind a calculator after entering a six-digit code, where we can also store our videos and photos in personalized folders. Although free, it comes quite loaded with advertising.
Secret Photo Album 1Locker

Exclusively for iOS devices, 1Locker Secret Photo Album stores your photos, videos, notes, web pages and passwords inside its calculator layer and protected with a PIN code, Touch ID or Face ID. to highlight your careful design that makes it pleasant and easy to use. This app saves the data inside your device, so if you delete the app, you will also delete what is inside. If you want to use it as a backup in the cloud, you will have to go through the box.
- Download Secret Photo Album · 1Locker for free (with in-app purchases) on the App Store.