# Trigonometry calc vs iCalc Triangle Calculator Pro

The clearest difference is review sentiment: iCalc Triangle Calculator Pro at 100% against Trigonometry calc's 0%. iCalc Triangle Calculator Pro also leads on rating (3.6 vs 3.0) and in-app purchases (none vs 1). Trigonometry calc's advantage is update cadence (every 3 months vs every 19 months). On price, ratings volume, device support and iOS requirement there is nothing between them.

Both are free to download. Trigonometry calc sells 1 one-off in-app purchase. iCalc Triangle Calculator Pro asks for nothing beyond the download.

iCalc Triangle Calculator Pro holds the better App Store score, 3.6 against 3.0. Both are backed by a comparable volume of ratings — 2 and 5 respectively. Written reviews point the same way: 0% of Trigonometry calc's written reviews are positive against 100% of iCalc Triangle Calculator Pro's.

Trigonometry calc ships an update every 3 months, iCalc Triangle Calculator Pro every 19 months. The most recent releases landed on October 18, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Trigonometry calc | iCalc Triangle Calculator Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (2 ratings)](https://appshunter.io/ios/app/trigonometry-calc/id1306864057/reviews) | **[3.6 (5 ratings)](https://appshunter.io/ios/app/icalc-triangle-calculator-pro/id1603009957/reviews)** |
| Number of ratings | 2 | **5** |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 3 months** | Every 19 months |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 10 MB | 4 MB |
| Requires iOS | 15.6 | **15.2** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Bo Kalvslund](https://appshunter.io/developer/572272193) | [Jake Elrod](https://appshunter.io/developer/365336355) |

## 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 |


### iCalc Triangle Calculator Pro

[App page](https://appshunter.io/ios/app/icalc-triangle-calculator-pro/id1603009957)

Explore the fundamental properties of triangles with this interactive educational application. It allows users to delve into angles, area, sides, and perimeter, providing a hands-on approach to understanding geometric concepts.

**Highlights:** Triangle property exploration, Calculate angles, Calculate area, Calculate sides, Calculate perimeter, Interactive learning

**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 iCalc Triangle Calculator Pro free?

iCalc Triangle Calculator Pro is free to download, with no in-app purchases.

### Which has better reviews, Trigonometry calc or iCalc Triangle Calculator Pro?

iCalc Triangle Calculator Pro is rated higher. Trigonometry calc averages 3.0 out of 5 from 2 ratings, while iCalc Triangle Calculator Pro averages 3.6 from 5 ratings.

### Do Trigonometry calc or iCalc Triangle Calculator Pro have ads?

Trigonometry calc shows ads; iCalc Triangle Calculator Pro does not.

### Which is updated more often, Trigonometry calc or iCalc Triangle Calculator Pro?

Trigonometry calc ships an update every 3 months, and iCalc Triangle Calculator Pro every 19 months. Most recently, Trigonometry calc was updated on October 18, 2026 and iCalc Triangle Calculator Pro on October 24, 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.*