Sparky's E6B emulates a mechanical E6B Flight Computer. The app can be used to perform calculations, or to practice and learn how to use a mechanical E6B.

The E6B is an analog computer invented in the 1930's by Lt. Philip Dalton, USN for purposes of training and flight calculations.

The "slide rule" or "front" side includes a circular log-log scale that can be used for multiplication, division, fuel consumption and time/speed/distance calculations. There are also various conversions available, such as nautical-miles/statute-miles/kilometers, fuel and oil volume and weight.

The windows on the front are used for airspeed, various forms of "altitude' and mach number calculations.

The "wind" side is a vector computer used to determine flight headings, wind correction angle etc.

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We hope you enjoy the Free E6B App, and find it useful and instructive.

What’s New

Version Version 1.1

Version 1.1 saves the positions for the E6B, as well as the line drawn on the wind side, so when the app screen is opened again, the last calculation is present. App can now be used in multitasking mode.

Ratings and Reviews

5.0 out of 5
1 Rating

1 Rating

owls4days ,

Light and simple

This is a great minimalist E6B both in terms of interface and phone data storage real estate. Great if you know what you're doing and you're familiar with it's use-age, not so great in terms of some markings (while not necessary for the practised) missing or just not as common as I'd have thought


Intineo LLC
13.9 MB

Requires iOS 11.0 or later. Compatible with iPhone, iPad and iPod touch.



Age Rating


  • Family Sharing

    Up to six family members will be able to use this app with Family Sharing enabled.

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