# Trigonometry calc vs Trigonometry(Math Drills)

The clearest difference is in-app purchases: Trigonometry(Math Drills) at none against Trigonometry calc's 1. Trigonometry(Math Drills) also leads on ads (none vs shown) and update cadence (monthly vs every 3 months). On price and device support there is nothing between them.

Both are free to download. Trigonometry calc sells 1 one-off in-app purchase. Trigonometry(Math Drills) asks for nothing beyond the download.

Trigonometry calc ships an update every 3 months, Trigonometry(Math Drills) monthly. The most recent releases landed on September 6, 2026 and August 4, 2026 respectively.

## The numbers

| Metric | Trigonometry calc | Trigonometry(Math Drills) |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (2 ratings)](https://appshunter.io/ios/app/trigonometry-calc/id1306864057/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | **Monthly** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 10 MB | 28 MB |
| Requires iOS | 15.6 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Bo Kalvslund](https://appshunter.io/developer/572272193) | [郷 田村](https://appshunter.io/developer/1574588679) |

## 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(Math Drills)

[App page](https://appshunter.io/ios/app/trigonometrymath-drills/id1623896351)

Master trigonometry concepts offline with this educational app. It covers essential topics like the Pythagorean theorem, right triangles, special angles, and shape measurements. Challenge yourself to improve your rank and test your knowledge.

**Highlights:** Offline learning, Pythagorean theorem, Right triangle trigonometry, Coordinate trigonometry, Special angles, Shape measurements, Challenge Mode for ranking

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Trigonometry calc free?

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

### Is Trigonometry(Math Drills) free?

Trigonometry(Math Drills) is free to download, with no in-app purchases.

### Do Trigonometry calc or Trigonometry(Math Drills) have ads?

Trigonometry calc shows ads; Trigonometry(Math Drills) does not.

### Which is updated more often, Trigonometry calc or Trigonometry(Math Drills)?

Trigonometry calc ships an update every 3 months, and Trigonometry(Math Drills) monthly. Most recently, Trigonometry calc was updated on September 6, 2026 and Trigonometry(Math Drills) on August 4, 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.*