Speed Trigonometry
Nick Petroni Education iPhoneiPadiPod touch
Speed Trigonometry is a free Education app for iPhone and iPad by Nick Petroni. Rated 4.8/5 from 5 ratings. Requires iOS 18.5. Updated August 6, 2026.
- Rating
- 4.8
- 5 ratings
- Price
- Free
- on the App Store
- Size
- 2 MB
- Age 4+
- Updated
- Aug 6
- 2026 · v1.1
Screenshots
About Speed Trigonometry
Speed Trig is the #1 app for memorizing the unit circle fast. Designed for students enrolled in Precalculus, the app quizzes you on the sine, cosine, tangent, and inverse trig values of the four main unit circle angles: π/2, π/3, π/4, and π/6. Our app was made by students, for students.
Ratings & reviews
4.8
5 ratings
What’s new
Version 1.1 · Updated August 6, 2026
VERSION 1.1 - Added ability to select which identities you want to practice for each session
App privacy
The developer, Nick Petroni, reported these privacy practices to Apple.
Data Not Collected
The developer does not collect any data from this app.
Alternatives to Speed Trigonometry
Looking for apps like Speed Trigonometry? Here are 6 similar apps on the App Store. The highest rated is Unit Circle Practice (4.8/5), and 5 of the 6 are free to download.
-
Trigonometry for Beginners
4.6
-
Beautiful Trigonometry
-
The Unit Circle App
-
CircleMap
4.7
-
Unit Circle Practice
4.8
-
Trigonometry Practice
| App | Rating | Price | Last updated |
|---|---|---|---|
| Speed Trigonometry | 4.8 / 5 (5 ratings) | Free | August 6, 2026 |
| Trigonometry for Beginners | 4.6 / 5 (31) | Free | Feb 18, 2026 |
| Beautiful Trigonometry | – | Free | Dec 7, 2025 |
| The Unit Circle App | – | Free | Sep 15, 2025 |
| CircleMap | 4.7 / 5 (3) | Free | Aug 18, 2025 |
| Unit Circle Practice | 4.8 / 5 (21) | Free | Mar 10, 2026 |
| Trigonometry Practice | – | 0.49 USD | Dec 13, 2025 |