Torque is slower then a scan-gauge but better then nothing. The apple stuff is wierd and I never got it to work you need an expensive obd2 dongle for apple stuff. You can find a android phone or tablet for $20-$30 anything will work. The better the device the faster it will be tho (more ram and better processor).
Virgin Kyocera Event Prepaid Cell Phone - Black : Target
This POS phone will work fine. Torque is worth $5 will show you more then Ultragauge or scangauge but not everything will work.
You have to calibrate it just like an UG or SC before it will give you real numbers, but even if you just use it with fake numbers it doesn't make a difference if the trip to work you get a 55MPG* and tomorrow you get a 65MPG* you still know you did better today then yesterday even if you only got 15MPG and 25MPG.
You can use it as a dash cam and have it make a video with an overlay of stats like instant MPG or TPS and watch it and learn where you messed up or a clock so you can count that 2 mile coastdown with a GPS speed overlay. Its bad ass and I hope it improves because it does have some bugs and mixed up data.