App Lock

Contains ads
4.3
360K reviews
Content rating
Everyone
10M+
Downloads
Content rating
Everyone
Learn more
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About this app

App Lock is an app protector which could protect your privacy. It can lock contacts, SMS, e-mail, gallery, settings, calls or any apps by password or pattern lock.

With this app, you don't have to worry about your private information on your phone to be exposed to other people, you don't have to worry about your kids messing your phone up by changing the settings.

This app will use Accessibility API to read app names, app icons and package names of all apps including the current app you are using so that it can lock them with password.
Updated on
Oct 14, 2025

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
This app may share these data types with third parties
Location, App activity and 2 others
This app may collect these data types
Location, App activity and 2 others
Data is encrypted in transit
Data can’t be deleted

Ratings and reviews

4.3
341K reviews
A Google user
February 18, 2020
I tried several locking apps, but this one is the best so far. Does what it says on the tin. Nice interface with several customisation options available. Access to your locked apps via pattern or code, with security question for lost password. Ads not too intrusive. Most important, cannot be removed without entering the password - surprising the number of so-called security apps which do not have this facility. So far I like it a lot. Kudos to the developer.
563 people found this review helpful
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Leonardo Lombardi
June 2, 2022
I consider this a work in progress. Doesn't work for me though. OnePlus8T Android 11. When uninstall protection is on, I can't uninstall anything, even after typing password. It gets in a loop asking pass again and again. Can't also use Google pay. Same loop. Sent email to dev but no response. Design Patterns to unlock should not be in the middle, but at the bottom of the screen so one handled even in large screen phone you can unlock.
102 people found this review helpful
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Ceferino Díaz
October 21, 2020
At the beginning I was glad with it because it is possible to use a PIN of more than 4 digits; but after using it for about two weeks, one day it began to change the number 6 for number 9 (I typed 6, it wrote 9). This made impossible to unlock anything locked with it. Then, when I tried to use the alternative method to be used in case you forgot the PIN, the keyboard didn't appeared. This kept happening every time I rebooted the phone. Don't use this app.
369 people found this review helpful
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What’s new

2.0.52:
Bugs fixed.
2.0.05:
A lot of improvements.