# Trigonometry! vs Asap Calculus

The clearest difference is review sentiment: Asap Calculus at 60% against Trigonometry!'s 14%. Asap Calculus also leads on rating (4.2 vs 2.0) and ratings volume (87 vs 4). Trigonometry!'s advantage is monetization model (free vs free with in-app purchases) and iOS requirement (9.0 vs 15.6). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Trigonometry! sells 1 one-off in-app purchase and Asap Calculus sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Asap Calculus holds the better App Store score, 4.2 against 2.0. That said, the two scores are not equally well evidenced: Asap Calculus has 87 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 14% of Trigonometry!'s written reviews are positive against 60% of Asap Calculus's.

Trigonometry! ships an update every 4 months, Asap Calculus every 3 months. The most recent releases landed on September 18, 2026 and September 13, 2026 respectively.

## The numbers

| Metric | Trigonometry! | Asap Calculus |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.0 (4 ratings)](https://appshunter.io/ios/app/trigonometry/id1236663817/reviews) | **[4.2 (87 ratings)](https://appshunter.io/ios/app/asap-calculus/id1271201984/reviews)** |
| Number of ratings | 4 | **87** |
| Positive reviews | 14.3% of reviews | **60.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 months** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 29 MB | 18 MB |
| Requires iOS | **9.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [AppCrab](https://appshunter.io/developer/1227198215) | [Mohammed Hassan Aljanahi](https://appshunter.io/developer/1219637605) |

## What reviewers say

### Trigonometry!

[App page](https://appshunter.io/ios/app/trigonometry/id1236663817)

Master trigonometry with this comprehensive mobile helper. It offers a textbook, visual explanations, and video lessons covering all essential formulas and theorems. Prepare for your exams with detailed content and easy-to-understand explanations.

**Highlights:** Ordered set of basic formulas and theorems, 172 video lessons, Easy-to-read and understand textbook, Covers major trigonometry topics, Visual explanations

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Trigonometry Premium | $0.99 | one-time |


### Asap Calculus

[App page](https://appshunter.io/ios/app/asap-calculus/id1271201984)

Learn calculus concepts and problem-solving techniques rapidly. This app offers shortcuts to tackle difficult problems instantly, covering both college-level and AP Calculus curricula.

**Highlights:** Learn calculus quickly and efficiently, Discover problem-solving shortcuts, Solve hard problems instantly, Covers college and AP Calculus

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Access | $0.99 | one-time |


## Frequently asked questions

### Is Trigonometry! free?

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

### Is Asap Calculus free?

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

### Which has better reviews, Trigonometry! or Asap Calculus?

Asap Calculus is rated higher. Trigonometry! averages 2.0 out of 5 from 4 ratings, while Asap Calculus averages 4.2 from 87 ratings.

### Do Trigonometry! or Asap Calculus have ads?

Neither Trigonometry! nor Asap Calculus shows ads.

### Which is updated more often, Trigonometry! or Asap Calculus?

Trigonometry! ships an update every 4 months, and Asap Calculus every 3 months. Most recently, Trigonometry! was updated on September 18, 2026 and Asap Calculus on September 13, 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.*