# Trigonometry calc vs Trigonometry Formulas

The clearest difference is review sentiment: Trigonometry Formulas at 100% against Trigonometry calc's 0%. Trigonometry Formulas also leads on rating (5.0 vs 3.0) and in-app purchases (none vs 1). Trigonometry calc's advantage is price (Free vs $0.99) and update cadence (every 3 months vs every 10 months). On ratings volume and device support there is nothing between them.

Trigonometry calc is free to download; Trigonometry Formulas costs $0.99 up front. Trigonometry calc 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 3.0. Both are backed by a comparable volume of ratings — 2 and 2 respectively. Written reviews point the same way: 0% of Trigonometry calc's written reviews are positive against 100% of Trigonometry Formulas's.

Trigonometry calc ships an update every 3 months, Trigonometry Formulas every 10 months. The most recent releases landed on September 6, 2026 and August 19, 2026 respectively.

## The numbers

| Metric | Trigonometry calc | Trigonometry Formulas |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | [3.0 (2 ratings)](https://appshunter.io/ios/app/trigonometry-calc/id1306864057/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/trigonometry-formulas/id1477059658/reviews)** |
| Number of ratings | 2 | 2 |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 3 months** | Every 10 months |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 10 MB | 27 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Bo Kalvslund](https://appshunter.io/developer/572272193) | [Ranjeet Kumar](https://appshunter.io/developer/1476822683) |

## What reviewers say

### Trigonometry calc

[App page](https://appshunter.io/ios/app/trigonometry-calc/id1306864057)

Calculate side lengths and angles in right-angled triangles using Pythagorean theorem and trigonometry functions. Learn basic trigonometry concepts. An optional premium version removes ads and unlocks a general triangle calculator.

**Highlights:** Calculate side lengths, Calculate angles, Pythagorean Theorem, Trigonometry functions, Learn simple trigonometry, General triangle calculator (premium)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 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 calc free?

Trigonometry calc 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 calc or Trigonometry Formulas?

Trigonometry Formulas is rated higher. Trigonometry calc averages 3.0 out of 5 from 2 ratings, while Trigonometry Formulas averages 5.0 from 2 ratings.

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

Trigonometry calc shows ads; Trigonometry Formulas does not.

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

Trigonometry calc ships an update every 3 months, and Trigonometry Formulas every 10 months. Most recently, Trigonometry calc was updated on September 6, 2026 and Trigonometry Formulas on August 19, 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.*