"Device ID and Call Information" permission is necessary for turning off noise when incoming call is received.
This application is designed by 돼지왕왕돼지 and its category is Lifestyle. The most recent release was on May 15, 2018 and the app was downloaded and set up by over 100K users. The overall score for Concentration!! is 3.9 on Google Play.
The tool has adverts. The statistics show that this application is popular mostly among Samsung and Vivo users. Download the .apk installer of Concentration!! 1.1.4 that is absolutely free of charge and have a look at users' reviews on Droid Informer. This application setup package requires 20 MB to be successfully installed. The app is built for Android 4.0.3 and higher.
The app was scanned for viruses and it was found 100% safe.