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Average ISA Deviation
Achieving a smooth descent
Juan Mauricio Padilla Villarreal · Navigation
★ 5.00average rating
2ratings
+0new ratings, last 7 days
—not in top charts now
Ratings breakdown
| ★★★★★ | 100% | |
| ★★★★ | 0% | |
| ★★★ | 0% | |
| ★★ | 0% | |
| ★ | 0% |
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App info
- Developer
- Juan Mauricio Padilla Villarreal
- Category
- Navigation, Education
- Released
- Apr 10, 2013
- Version
- 3.1 (Dec 21, 2025)
- Price
- $3.99
- Size
- 0.5 MB
- Requires
- iOS 26.1
- Age rating
- 4+
- Languages
- English
In-app purchases
noneCurrent prices, App Store US.
About Average ISA Deviation
Average ISA Deviation is a fast and precise utility designed for pro pilots who need to calculate the average ISA temperature deviation to correctly enter the DES FORECAST in the FMC of the Boeing 737 (NG / MAX) and other aircraft. The app allows you to: • Quickly calculate the average ISA deviation • Reduce workload and potential errors during descent planning • Simplify calculations that are normally done manually • Work fully offline, ideal for cockpit use Designed by a pilot, for pilots. Legal Disclaimer This application is intended as an advisory and informational tool only. It does not replace official aeronautical charts, flight planning systems, company procedures, or regulatory guidance.
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