Trigonometry Help
Not in any tracked top chart right now.
Updated 28 Sep 2026 · rankings refresh through the day
DeveloperArmchair Engineering
CategoryUtilities
Price2.99 AUD
Released
Rating★ 4.8 (384)
Version4.0.5
Age rating4+
First seen by us
25 Sep 2026
25 Sep 2026Installs (est.)50k+ worldwide
Rating
4.8 ★
384 ratings
Measured
Trigonometry Help on the App Store
App details
App ID
411415648
Publisher
Armchair Engineering
Minimum OS
iOS 10.0+
iPhone 5 and later
Content rating
4+
Languages
3
EN FR DE
Size
22 MB
Trigonometry Help downloads
Worldwide, per day, and installs to date. The band is open; the exact number is free with an account.
How this is calculated
Apple publishes no download counts. iPhone downloads come from chart positions and daily rating growth per country, calibrated on Google Play install counts; lifetime installs from ratings worldwide × installs per rating. Confidence is the chance the real number is within half to double ours.
Active users
All platforms, worldwide. Free with an account.
Stickiness (DAU / MAU)
how many monthly users open it on a given day
How this is calculated
Monthly users come from lifetime installs across every store, fitted on monthly active user figures companies publish; daily users = monthly × the typical daily/monthly ratio for the category. Confidence is the chance the real number is within half to double ours.
Where it ranks now
Every top chart it appears in across 24 countries.
| Country | Charts | Rank |
|---|---|---|
| Not charting right now. | ||
Ratings
App Store, worldwide.
Rating
4.8 ★
384 ratings
Measured
Ratings
384
Measured
About Trigonometry Help
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 maths 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.
Proudly Australian made by Armchair Engineering.
Follow us @ArmchairEng on Twitter to keep up with news and developments.
Features Include:
- Accurately solve right-angled triangles
- Workings view, so you can see the maths 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.
Proudly Australian made by Armchair Engineering.
Follow us @ArmchairEng on Twitter to keep up with news and developments.
Latest updates
4.0.5
- Fixed floating keyboard bug, present on some devices running iOS 13
