Have you been waiting for an all-encompassing Part 135 Application to come along to assist in the laborious calculations associated with the job? Ever wonder how nice it would be to be have an iPad/iPhone App compute your “rolling” block/flight time requirements, in accordance with FAR 135.267, whether you are a single pilot (8/24) operator or dual piloted (10/24) operator? What about an App to assist with computing Departure Gradients, Climb Performance, Enroute Descents, Approach Planning Descent Distance and Timing, Landing Performance summaries including wet, dry and DAAP calculations, Runway Gradients and daily utilized aviation conversions?

The wait is over! The Pilot Aviation Duty and Performance Calculator Application offers all these calculations wrapped up in a single application. It also includes a Date Calculator that makes it easy to compute the common Minimum Equipment List (MEL) due dates or even your 30 day VOR Check. You no longer need to fill your iPad/iPhone with countless Apps to get the aviation information you desire, everything you need is included in this one simple to use App.

Although this App is geared toward Part 135 operators the various calculations can easily be adapted for use by all Part 91 General Aviation operators as well as Part 121 Commercial Airline pilots. There is something here for every professional pilot.

What’s New

Version 2.4

- iOS 11 support.

- iPhone X support.

Ratings and Reviews

Garjet ,

Good app, but

This is a good app, but it is annoying that the times are not saved when the app is exited. So essentially any info put into it is deleted anytime it is closed. This makes it very difficult to store hours in it. After spending $4.99, I expect something that works better.

Developer Response ,

This issue was resolved in Version 2.4. Thank you for bringing it to our attention.

Big crunk ,

Very helpful!

Thank you for creating! Is there any way you could increase the number of legs you can put in before you have to reset. 20+? I would like to put in a months worth of schedule at a time to make sure it works for me. Thanks again.


Banjoey ,

It's about time

I manage the iPad program for our pilots and since day one they have been looking for a part 135 duty time. With the additional calculations included this app is that wrench that every 135 pilot should have on their efb.


Crop Applications, LLC.
2.3 MB
Requires iOS 9.0 or later. Compatible with iPhone, iPad, and iPod touch.
Age Rating
Rated 4+
© 2012 Crop Applications, LLC.


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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