# Trigonometric Time Attack vs Speed Trigonometry

The clearest difference is ads: Speed Trigonometry at none against Trigonometric Time Attack's shown. Trigonometric Time Attack's advantage is update cadence (every 2 months vs every 14 months) and iOS requirement (15.0 vs 18.5). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Trigonometric Time Attack ships an update every 2 months, Speed Trigonometry every 14 months. The most recent releases landed on September 9, 2026 and August 8, 2026 respectively.

## The numbers

| Metric | Trigonometric Time Attack | Speed Trigonometry |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.8 (5 ratings)](https://appshunter.io/ios/app/speed-trigonometry/id6747187585/reviews)** |
| Number of ratings | — | **5** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 2 months** | Every 14 months |
| Monetization | — | Free |
| Size | 25 MB | 2 MB |
| Requires iOS | **15.0** | 18.5 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [takamitsu furuya](https://appshunter.io/developer/1599281350) | [Nick Petroni](https://appshunter.io/developer/1597208168) |

## What reviewers say

### Trigonometric Time Attack

[App page](https://appshunter.io/ios/app/trigonometric-time-attack/id1599281348)

**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 Trigonometric Time Attack free?

Trigonometric Time Attack is free to download, with no in-app purchases.

### Is Speed Trigonometry free?

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

### Do Trigonometric Time Attack or Speed Trigonometry have ads?

Trigonometric Time Attack shows ads; Speed Trigonometry does not.

### Which is updated more often, Trigonometric Time Attack or Speed Trigonometry?

Trigonometric Time Attack ships an update every 2 months, and Speed Trigonometry every 14 months. Most recently, Trigonometric Time Attack was updated on September 9, 2026 and Speed Trigonometry on August 8, 2026.

---

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