# Flight Computer Pro

> E6B slide ruler simulator for aviation calculations with multiple modes. (iPhone/iPad app by Diego Rodrigues.)

- Source: https://appshunter.io/ios/app/flight-computer-pro/id1013614863 (this page in markdown: same URL + `.md`)
- Developer: [Diego Rodrigues](https://appshunter.io/developer/945473545)
- Category: Utilities, Education
- Price: $3.99
- Rating: 4.50/5 from 13 App Store ratings · 20 written reviews indexed
- Age rating: 4+
- Requires: iOS 8.0 · 334 MB
- Languages: American English
- Released: 2015-07-07
- Data updated: 2026-08-24
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/flight-computer-pro/id1013614863/reviews.md

## What is Flight Computer Pro?

An easy and intuitive simulation of the E6B slide ruler used by many aircraft pilots.

Features a high resolution ruler with smooth controls for rotating, sliding and pinch zooming, allowing precise calculations.

Feels like a real ruler in your hands!

All three modes are available:
- Conversions
- Wind corrections (low speed)
- Wind corrections (high speed)

Also features:
- Holding Pattern calculator (NEW!)
- Locking feature, to avoid accidental changes
- Quick reference with instructions on how to perform most calculations
- No ads

Try Flight Computer Sim for a free simpler version.

## Key features

- E6B slide ruler simulation
- Conversions mode
- Wind correction modes (low & high speed)
- Holding Pattern calculator
- Locking feature
- Quick reference guide

## Recent user reviews (10 of 20)

All indexed reviews: https://appshunter.io/ios/app/flight-computer-pro/id1013614863/reviews.md

### 5/5 — E6b in your pocket

*2026-06-09*

Great to have the analog capability, with the digital convenience. I have used this app for years and the only improvement that could be made would be to allow  annotations on the front. This E6B makes it easy to calculate angle, gradient and feet per nautical mile with one twist and then lock the screen.

### 3/5 — Non-Pro Version Better for larger screens

*2026-05-18*

The non-pro version fits my iPhone 15 Pro Max screen nicely and zooms in an out effortlessly. The pro version does not zoom out enough so a portion of it is always cut off. Wonderful tool, but they need to fix this one major issue with the pro version before it is worth the purchase in my opinion.

### 5/5 — Learn to use the E6B!

*2025-01-09*

This is a great computerized version of the famous circular slide rule. Excellent help text. Refresh your memory and do calculations like your father and grandfather did.

### 4/5 — Zoom. Problema mesmo na v. Pro

*2024-06-26*

O zoom deveria ser dado através de uma barra deslizante com o dedo e não pinçando os dedos

### 3/5 — No help tab on iPhone version of pro

*2023-10-05*

Hi, the app looks to be good, but there is no help tab on the iPhone pro version, so I can’t see how to get pressure altitude. The results I get using this tool seem to be off, but perhaps I am not using it correctly, thus my reason for needing the help tab.

### 5/5 — Excellent tool for CFI’s and ground instructors

*2023-07-04*

Far better than using the giant E6-B classroom demonstrator- you can open this on your iPad and cast it to a large screen. Perfect- thank you for making this app!!  CFII

### 4/5 — Nicely done

*2023-05-07*

Only 4 stars due to lack of crosswind computations when landing. I have been playing with a lot of practice problems and have been enjoying getting back into the E6B. That being said, I cannot seem to find the way to compute, crosswind, velocities and angles. Perhaps I’m doing it wrong or just not seeing it.  I have compared the wind card to other low speed wind cards and crosswind data appears to be missing.

I like the app very much. If some color could be added similar to the ASA E6B or some of the circular E6Bs, that would definitely kick it up a notch and make using visually easier. 

Nice job.  I look forward to any improvements.

### 5/5 — Feature

*2022-09-25*

A reset feature would be great.

### 3/5 — Not optimized for current iOS and iPadOS

*2021-12-06*

This is a great app, but it has been neglected by the developer and on newer iPhones the top-notch in the screen obscures a part of the menu, and in iPadOS it does not allow for split-screen. Without the option to run in split-screen, it’s difficult when using it to solve problems that are also on your iPad screen, you have to switch back and fourth between the apps. It also desperately needs a night mode (inverted colors - ideally tied to the OS to automatically change)

### 3/5 — Does not fit iPhone 11 or 11 Pro screen

*2020-08-17*

The non-Pro version fits my screen nicely.  
(With some unused screen top and bottom.)

The Pro version is too big for the iPhone 11 Pro screen. The computer hangs off the left and right edges and at the top. The Help button is almost completely obscured by the camera notch. 

Zoom and pan work but zoom does not shrink to show the entire computer.   

You need to resize the work space to fit the screen.  I bet the problem is related to the missing advertisements. 

Setting the wind vector is a little squirrelly.  Sometimes I mess up the wind vector when I reach over to set the course dial. This is app is not ready for big thumbs.  How about a double tap to lock/unlock the wind vector? (With an appropriate change of line color.)

I like how the wind vector is handled in the Sparkys E6B app. Two steps; dial in the wind direction, then set the speed. As soon as you set the speed, the wind direction is locked. Fat fingers can still mess up wind when setting the course. 

The screen size mis-match is a deal breaker for the iPhone 11/11 Pro... Minor stuff.  A really good effort on your part. Terrific graphics.

ADDITIONAL NOTE; A DAY LATER:  I loaded the app on my very old iPad Mini. Interestingly the Pro version crashes but the regular version with advertisements runs nicely.  (Still betting the issue is related to the adds.) Also discovered that my son’s iPhone 11 has the same screen size problem as my 11 Pro. 

This really is a great app. Fix the size issue for the newer iPhones and I’ll bump you to 5 stars.  

The aviation community needs this app.  I hope you keep supporting it. I will be using the non-crashing version on my iPad mini to teach my son how to use his new E6B.

## Frequently asked questions about Flight Computer Pro

### What is Flight Computer Pro?

Flight Computer Pro is a digital simulation of the E6B slide ruler, a tool commonly used by aircraft pilots for calculations like fuel consumption, time en route, and wind corrections. It offers a realistic feel with smooth controls for precise adjustments.

### What modes does Flight Computer Pro offer?

Flight Computer Pro includes three primary modes: Conversions, Wind Corrections (low speed), and Wind Corrections (high speed). It also features a newly added Holding Pattern calculator for more advanced flight planning.

### Does Flight Computer Pro have ads?

No, Flight Computer Pro is ad-free. The app description explicitly states 'No ads', ensuring an uninterrupted user experience for pilots performing critical calculations.

### How much does Flight Computer Pro cost?

Flight Computer Pro is a paid application, available for $3.99. This one-time purchase grants access to all its features without any recurring fees or in-app purchases.

### What devices is Flight Computer Pro compatible with?

Flight Computer Pro is designed for iOS devices, including iPhone, iPad, and iPod. It requires iOS 4.3 or later and was last updated on May 30, 2018.

### How accurate are the calculations in Flight Computer Pro?

The app features a high-resolution ruler with smooth controls for pinch zooming and sliding, enabling precise calculations. While the exact accuracy is not specified, the design aims to replicate the precision of a physical E6B slide ruler.

### Is there a free version of Flight Computer Pro?

Yes, there is a simpler, free version available called 'Flight Computer Sim'. This allows users to try out a basic version before purchasing the full-featured Flight Computer Pro.

### How often is Flight Computer Pro updated?

Flight Computer Pro was last updated on May 30, 2018, to version 1.40. While the app has not seen recent updates, it remains a functional tool for its intended purpose.

## Version history (last 5 releases)

### 1.40 — 2018-05-30

This update from Apple will improve the functionality of this app. No new features are included.

- Can now be used in landscape mode (great for classroom projectors).
- Minor bug fixes and improvements.

### 1.31 — 2017-05-02

- Visual improvements for precision

### 1.3 — 2016-12-04

- New mode available: Holding Pattern calculator!
- Reworked the interface
- Added more helpful instructions on the ruler
- Many optimizations

### 1.1 — 2016-05-23

- Added the ability to lock the ruler, to prevent rotating/sliding by mistake;
- Added markers for Fuel Lbs. and Oil Lbs.; 
- Small improvements to the UI;
- Better performance and small fixes.

### 1.0 — 2015-07-07

No release notes.

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## More apps by Diego Rodrigues

- [Flight Computer Sim](https://appshunter.io/ios/app/flight-computer-sim/id951334562)
- [Power Grid Puzzle](https://appshunter.io/ios/app/power-grid-puzzle/id1564669365)

All apps by Diego Rodrigues: https://appshunter.io/developer/945473545

## Related topics

[flight computer pro](https://appshunter.io/ios/topics/flight-computer-pro) · [e6bx e6b flight computer](https://appshunter.io/ios/topics/e6bx-e6b-flight-computer) · [flight computer](https://appshunter.io/ios/topics/flight-computer)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-24.*