UPDATE Mar 15, 2017. The chest cycle in this version stays THE SAME. Meaning there's no need to update the app. SMC, Legendary, and Epic are randomly distributed with the rate of 1/500 for SMC, 1/240 or 1/480 for Legendary and Epic chests If you receive a SMC, Legendary or Epic, please choose your NEXT 100% CHEST BECAUSE THEY WILL REPLACE THAT CHEST.
According to the antivirus report, Ultimate Chest Tracker is safe and secure. Hoang Nguyen Bang designed the tool that falls into the Productivity category. Over 1M users downloaded and set up this application and the latest update was on Oct 17, 2016.
The app was rated 4.5 on Google Play. It's free of charge to get the .apk setup package of Ultimate Chest Tracker and you can read users' reviews on Droid Informer. This application installer requires 23 MB of free space to run on Android 2.3 and above.
As users see it, you can notice such a disadvantage of the app as too many ads.