Flight Instruments

Maybe it works with GPS on but in flight mode or with no connection (which is mostly the case when flying) it doesn't work. When banking for more than 10 secs it slowly rolls wings to level - precession - and ANU/AND is highly unreliable. For small props, perhaps - I haven't tried but for jets, NO WAY.

Super junky, not even close to a reliable back up in my plane. I'm not sure what the use of this app is.

As a minimum, the speed and altitude display numbers need to be larger. Probably the heading could be larger, too. Recommend having an option under settings to select. Otherwise, a cool apt.

I wish I had checked other's reviews before buying. It does not work for flight. Too much vibration for the gyro I guess. I had my iphone Velcroed to the panel. Works while driving a car, but who need pitch/bank angle for driving? The free versions will do that.

This is a terrible and downright dangerous app. It can't tell a bank from a slip or skid. It also confuses acceleration and deceleration with pitch changes. I'm quite sure that if you tried to depend on this as a back up attitude instrument you'd be dead within a couple of minutes.

I'm an ATP CFI CFII MEI AGI and active professional pilot. I bought this for fun but it stinks even as an artificial horizon simulator. Does not hold a reference for wing level and must be caged constantly which defeats the purpose. I want my $5 back.

Will not hold level for more than 1 minute.

I knew when the iPhone 4 with gyros was announced it was only a matter of time before someone created an attitude indicator utilizing this functionality. There have been a few apps before like this but they do not use the gyros and only use GPS data. This app is amazing. I tested it out while flying; put it through all kinds of coordinated and uncoordinated turns, climbs, dives, slips and skids and the indicator behaved exactly like the real one in the cockpit. This app could save your life if mounted properly in the plane ahead of time. Note: don't buy this if you don't have an iPhone 4, you wont be impressed.

Great idea. A little frustrating that I had to be below 180kts and about 7,000' to get valid indications. Once up it was within 150' and 2 kts of the actual aircraft speed and altitude. In cruise it was precessing badly, almost unusable. That was at FL410 and an indicated .83 Mach. A landscape mode would be very desirable.