Lock screen pattern was downloaded and set up by over 1M users and its most recent stable update was on Sep 25, 2020. Ads are a part of this application. Samsung and Nokia users highly appreciate the app.
A free .apk file of Lock screen pattern 1.1 is available from Droid Informer and you can have a look at users' reviews on this site. Prepare 8 MB of free space on your device for this app setup package and keep in mind that it runs on Android 4.0 and above.
Based on the users’ opinions, the benefit of the app is a nice design.