# Speed Trigonometry vs ForensicCrash

The clearest difference is in-app purchases: Speed Trigonometry at none against ForensicCrash's 1. ForensicCrash's advantage is update cadence (every 10 days vs every 14 months) and iOS requirement (15.1 vs 18.5). On price, ads and device support there is nothing between them.

Both are free to download. ForensicCrash sells 1 in-app purchase, starting at $49.99 per year. Speed Trigonometry asks for nothing beyond the download.

Speed Trigonometry ships an update every 14 months, ForensicCrash every 10 days. The most recent releases landed on October 7, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Speed Trigonometry | ForensicCrash |
| --- | --- | --- |
| 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** | Yes |
| Ads | No | No |
| Update frequency | Every 14 months | **Every 10 days** |
| Monetization | Free | — |
| Size | 2 MB | 46 MB |
| Requires iOS | 18.5 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Nick Petroni](https://appshunter.io/developer/1597208168) | [Crash Consultant Service, LLC.](https://appshunter.io/developer/6796457938) |

## What reviewers say

### 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


### ForensicCrash

[App page](https://appshunter.io/ios/app/forensiccrash/id6796457936)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Expert Membership | $49.99 | per year |


## Frequently asked questions

### Is Speed Trigonometry free?

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

### Is ForensicCrash free?

ForensicCrash is free to download, with in-app purchases available.

### Do Speed Trigonometry or ForensicCrash have ads?

Neither Speed Trigonometry nor ForensicCrash shows ads.

### Which is updated more often, Speed Trigonometry or ForensicCrash?

Speed Trigonometry ships an update every 14 months, and ForensicCrash every 10 days. Most recently, Speed Trigonometry was updated on October 7, 2026 and ForensicCrash on October 1, 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.*