App Lock was downloaded and set up by over 1M users and its latest stable release was on Sep 11, 2020. Users rated the app 4.3 on Google Play. Take into account the important detail: advertisements are a part of this application and it offers in-app purchases.
The way users see it, App Lock features the following pluses: a cool interface, good performance and useful features. Users write reviews saying that you can find such disadvantages of the app as many ads, screen freezes and a battery drain.