There are in-app purchases and adverts in this application. The app is very popular among Samsung and HTC users. Use the opportunity to download the .apk installation package of Photo Editor Square Fit Collage Maker 4.50 free of charge and have a look at users' reviews on Droid Informer. This installation package occupies 21 MB on disk and it runs on Android devices 4.1 and above.
The antivirus report shows that the app is totally safe.
As users mention, the obvious disadvantage of this application is too many ads.