I had high hopes for this app to use as a backup vario in my sailplane. Granted it will not be compensated and less accurate than pressure based but should still be helpful in case of dead vario. But I found it not very usable from the following reasons:
1- as soon as I get high enough and outside cell coverage it keeps complaining with error messages and freezes. Not having cell coverage is common 90% of the time where I fly and there is no need for cell coverage just for the vario functionality.
2- audio beeps are very unintuitive. The rate of the beeps should increase, not just the pitch, like any normal vario.
3- it is not clear what is the purpose of the secondary vario scale. Surely the needle should not move down to the center if the rate of climb exceeds 5 m/s!
4- the app should not allow the iPhone to auto lock !
5 - feet per second is not a common non metric unit. The scale should be in knots!
6- digital rate of climb should be 20 sec average not instantaneous especially since GPS altitude is not smooth.
Please fix all these and ill be happy to give a better review and recommend it to the whole gliding community.
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Mauifly
Ol'bart
Ramyy