It stores information. The only problem that I have run into was getting a trip's data, but I can look at my daily statistics to see how well I did that day. I haven't experienced any glitchy bluetooth things with this app, but did with Torque.
It stores information pretty well, and I can see my lifetime costs and gallons used and MPG, as well as max torque (glitchy ATM, saying I have 335+ lol) and max HP (seems reasonable at 125), max gallons per hour (10.5, which is reasonable), max acceleration (I think I got 1.2Gs, not sure though), max braking (again, 1.2Gs), avg fuel flow (around 0.5), avg speed with and w/out idle, etc.
Really quite amazing, and there are probably much more features that I can't unlock with the automatic including the "you should shift now" stuff.
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