This is a cellular usage data tracker – Meter Robot Review

Like the other reviewers. It took me a while to figure out the purpose of this app. But after fiddling with it for a few minute, I finally understood it. It is a mobile data usage tracker! Maybe it will perform speed tests as well while tracking your usage along the way but this is what the app seems to be for. Unlike the speed test app, this app does not allow you to test your speed. It will test your speed as you use your phone to do things in the Web. The bottom left of the screen allows you to specify what day you want the limits to be reset. You will set this to the exact same day your provider resets their bill. On the bottom right, you will set your monthly data limit using 1000mb = 1gb as a guide. I assume that the "meter" button at the bottom center of the screen will start showing some data as you use your data plan to do things in the Web, I think this is the speed test part of the app. If you tap on the big number at the top of the screen, you can override the actual value of how much you have actually used for the current period in relation to your specified monthly maximum that you have previously entered at the bottom right of the screen. The center circular button shows you the percentage of your usage in comparison to your limit. Anyway, this is really an app that I developed but am just trying to impart what I understood the app to be in the absence of the actual developer's user guide. Hope this helps!
Review by tgrbrn on Meter Robot.