Aero Chart is an aviation chart reading app. After making entries for things like airfield temperature, altitude, altimeter setting, etc, as well as aircraft configuration info, Aero Chart will apply it to chart data taken and coded from the aircraft AFM and make performance calculations for you.
If you think you might be interested in this App, but your aircraft is not currently supported, feel free to email me, or comment, and I will be happy to write it in. If you can include a PDF version of your AFM, that would be very helpful.