What's New

- Fixed floating keyboard bug, present on some devices running iOS 13

App Description

Trig Help is a simple triangle calculator that enables you to quickly and easily find unknown angles & sides of any right-angled triangle.

Features Include:

- Accurately solve right-angled triangles
- Workings view, so you can see the math behind the solutions (requires optional upgrade)
- View a scale drawing of your solved triangle
- View a handy set of basic trig formulae
- Enter angles in radians, decimal degrees or degrees, minutes, seconds
- Select your preferred number of decimal places

What two App Store reviewers had to say about Trig Help:

"I could never remember those simple formulas. I always had to dig out my text books from MANY YEARS ago to refresh my memory. THIS LITTLE APP IS A DELIGHT TO USE! I love it! Even my engineer friends are impressed. THANKS!" 5 Stars

"Easy to use and accurate with high degree of precision. Would recommend to any toolmaker." 5 Stars


Also available for OS X on the Mac App Store.

iPhone Screenshots

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Trigonometry Help screenshot 1 Trigonometry Help screenshot 2 Trigonometry Help screenshot 3 Trigonometry Help screenshot 4 Trigonometry Help screenshot 5

iPad Screenshots

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Trigonometry Help screenshot 6 Trigonometry Help screenshot 7 Trigonometry Help screenshot 8 Trigonometry Help screenshot 9 Trigonometry Help screenshot 10

App Changes

  • July 14, 2012 New version 2.0
  • July 14, 2012 Price increase: $0.99 -> $1.99
  • December 18, 2012 New version 2.0.1
  • June 11, 2015 New version 3.0
  • June 13, 2019 New version 4.0.1
  • November 11, 2019 New version 4.0.5

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