# Trigonometry! vs Trigonometry Formulas

The clearest difference is review sentiment: Trigonometry Formulas at 100% against Trigonometry!'s 14%. Trigonometry Formulas also leads on rating (5.0 vs 2.0) and in-app purchases (none vs 1). Trigonometry!'s advantage is price (Free vs $0.99) and update cadence (every 4 months vs every 10 months). On ratings volume, ads and device support there is nothing between them.

Trigonometry! is free to download; Trigonometry Formulas costs $0.99 up front. Trigonometry! sells 1 one-off in-app purchase. Trigonometry Formulas asks for nothing beyond the download.

Trigonometry Formulas holds the better App Store score, 5.0 against 2.0. Both are backed by a comparable volume of ratings — 4 and 2 respectively. Written reviews point the same way: 14% of Trigonometry!'s written reviews are positive against 100% of Trigonometry Formulas's.

Trigonometry! ships an update every 4 months, Trigonometry Formulas every 10 months. The most recent releases landed on September 18, 2026 and August 19, 2026 respectively.

## The numbers

| Metric | Trigonometry! | Trigonometry Formulas |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | [2.0 (4 ratings)](https://appshunter.io/ios/app/trigonometry/id1236663817/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/trigonometry-formulas/id1477059658/reviews)** |
| Number of ratings | **4** | 2 |
| Positive reviews | 14.3% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 10 months |
| Monetization | **Free** | Paid |
| Size | 29 MB | 27 MB |
| Requires iOS | **9.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [AppCrab](https://appshunter.io/developer/1227198215) | [Ranjeet Kumar](https://appshunter.io/developer/1476822683) |

## 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 |


### Trigonometry Formulas

[App page](https://appshunter.io/ios/app/trigonometry-formulas/id1477059658)

Access a comprehensive collection of trigonometry formulas, including ratios, functions, standard angle values, and identities. This app covers basic to advanced topics like inverse circular functions and properties of triangles, serving as a handy reference for students and enthusiasts.

**Highlights:** Trigonometric Ratios and Functions, Basic Trigonometric Formulas, Standard Angle Values, Quadrant Rules of Signs, Addition and Subtraction Formulas, Inverse Circular Functions, Properties of Triangles

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

**In-app purchases:** none


## Frequently asked questions

### Is Trigonometry! free?

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

### Is Trigonometry Formulas free?

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

### Which has better reviews, Trigonometry! or Trigonometry Formulas?

Trigonometry Formulas is rated higher. Trigonometry! averages 2.0 out of 5 from 4 ratings, while Trigonometry Formulas averages 5.0 from 2 ratings.

### Do Trigonometry! or Trigonometry Formulas have ads?

Neither Trigonometry! nor Trigonometry Formulas shows ads.

### Which is updated more often, Trigonometry! or Trigonometry Formulas?

Trigonometry! ships an update every 4 months, and Trigonometry Formulas every 10 months. Most recently, Trigonometry! was updated on September 18, 2026 and Trigonometry Formulas on August 19, 2026.

---

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