# Trigonometry Quick Reference vs Speed Trigonometry

The clearest difference is price: Speed Trigonometry at Free against Trigonometry Quick Reference's $0.99. Speed Trigonometry also leads on ratings volume (5 vs 1). Trigonometry Quick Reference's advantage is rating (5.0 vs 4.8) and iOS requirement (12.0 vs 18.5). On review sentiment, update cadence, ads and in-app purchases there is nothing between them.

Speed Trigonometry is free to download; Trigonometry Quick Reference costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Trigonometry Quick Reference holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Speed Trigonometry has 5 ratings behind it against 1, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.

Trigonometry Quick Reference ships an update every 8 months, Speed Trigonometry every 14 months. The most recent releases landed on June 8, 2026 and August 8, 2026 respectively.

## The numbers

| Metric | Trigonometry Quick Reference | Speed Trigonometry |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/trigonometry-quick-reference/id689382174/reviews)** | [4.8 (5 ratings)](https://appshunter.io/ios/app/speed-trigonometry/id6747187585/reviews) |
| Number of ratings | 1 | **5** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 8 months** | Every 14 months |
| Monetization | Paid | **Free** |
| Size | 10 MB | 2 MB |
| Requires iOS | **12.0** | 18.5 |
| Devices | iPad | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Ventura Educational Systems](https://appshunter.io/developer/371324172) | [Nick Petroni](https://appshunter.io/developer/1597208168) |

## What reviewers say

### Trigonometry Quick Reference

[App page](https://appshunter.io/ios/app/trigonometry-quick-reference/id689382174)

This app offers a concise overview of fundamental trigonometry concepts, including sine, cosine, tangent, and inverse functions. It serves as a quick reference tool for students to review key ideas and test their understanding with quizzes.

**Highlights:** Overview of basic trigonometry concepts, Explanations of sine, cosine, and tangent, Information on inverse functions, Unit circle, ranges, and domains, Quizzes to measure understanding, Detailed explanations on key topics

**Features:** macOS Compatibility

**In-app purchases:** none


### Speed Trigonometry

[App page](https://appshunter.io/ios/app/speed-trigonometry/id6747187585)

This app helps students quickly memorize the unit circle. It quizzes users on sine, cosine, tangent, and inverse trigonometric values for key angles. Developed by students for students, it's ideal for precalculus learners.

**Highlights:** Unit circle memorization, Quizzes on trig values, Focus on key angles, Sine, cosine, tangent, inverse values, Student-developed

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Trigonometry Quick Reference free?

Trigonometry Quick Reference costs $0.99, with no in-app purchases.

### Is Speed Trigonometry free?

Speed Trigonometry is free to download, with no in-app purchases.

### Which has better reviews, Trigonometry Quick Reference or Speed Trigonometry?

Trigonometry Quick Reference is rated higher. Trigonometry Quick Reference averages 5.0 out of 5 from 1 ratings, while Speed Trigonometry averages 4.8 from 5 ratings.

### Do Trigonometry Quick Reference or Speed Trigonometry have ads?

Neither Trigonometry Quick Reference nor Speed Trigonometry shows ads.

### Which is updated more often, Trigonometry Quick Reference or Speed Trigonometry?

Trigonometry Quick Reference ships an update every 8 months, and Speed Trigonometry every 14 months. Most recently, Trigonometry Quick Reference was updated on June 8, 2026 and Speed Trigonometry on August 8, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*