The latest update was on Sep 25, 2020 and Lock Screen was downloaded and set up by over 5M users. Ads are a part of this application. The app is often downloaded by Samsung and Lenovo users.
Get the .apk installer of Lock Screen 1.6 free of charge and have a look at users' reviews on Droid Informer. This setup package requires 4 MB on disk and it works flawlessly on Android 4.0 and higher.
As users mention, the strong point of the app is a nice design. As users see it, the weak points of this application are annoying ads and a battery drain.