Whats the app that hides other apps?
The customizable App Hider lets you hide apps on your Android and manage them from different accounts on your device. The app-hider icon is even disguised as a calculator. Vault's purpose is to hide apps, files, photos, and videos on your Android.
How do you tell if someone has a hidden app on their phone?
Tap on the three dots that are present at the upper-right of the device screen. Click on the home screen settings. It will navigate you to the Hide apps menu; tap on it. Here, you will see the hidden apps that are not showing in the app list.