# Trigonometry calc vs Ratio & Proportion Calculator

The clearest difference is review sentiment: Ratio & Proportion Calculator at 67% against Trigonometry calc's 0%. Ratio & Proportion Calculator also leads on rating (4.7 vs 3.0) and ads (none vs shown). On price, in-app purchases, monetization model and device support there is nothing between them.

Both are free to download. Trigonometry calc sells 1 one-off in-app purchase and Ratio & Proportion Calculator sells 8 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Ratio & Proportion Calculator holds the better App Store score, 4.7 against 3.0. That said, the two scores are not equally well evidenced: Ratio & Proportion Calculator has 16 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 0% of Trigonometry calc's written reviews are positive against 67% of Ratio & Proportion Calculator's.

Trigonometry calc ships an update every 3 months, Ratio & Proportion Calculator every 3 weeks. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Trigonometry calc | Ratio & Proportion Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (2 ratings)](https://appshunter.io/ios/app/trigonometry-calc/id1306864057/reviews) | **[4.7 (16 ratings)](https://appshunter.io/ios/app/ratio-and-proportion-calculator/id1497341674/reviews)** |
| Number of ratings | 2 | **16** |
| Positive reviews | 0.0% of reviews | **66.7% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 10 MB | 180 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Bo Kalvslund](https://appshunter.io/developer/572272193) | [Glindemann, Sennoun, Langer GbR](https://appshunter.io/developer/1024972809) |

## 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 |


### Ratio & Proportion Calculator

[App page](https://appshunter.io/ios/app/ratio-and-proportion-calculator/id1497341674)

Easily solve proportion problems by entering three of the four variables. This app provides detailed step-by-step solutions and saves all your calculations in a history for later review. Fractions, decimals, and constants are supported.

**Highlights:** Solve proportions with 3 variables, Detailed solution steps, Calculation history, Supports fractions and decimals, Option to remove ads

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

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| +30 User Tokens | $0.29 | one-time |
| +1 Convenience Token / 6h, max. +2 | $0.59 | one-time |
| +2 Convenience Tokens / 6h, max. +4 | $0.99 | one-time |
| +150 User Tokens | $0.99 | one-time |
| +300 User Tokens | $1.49 | one-time |
| +4 Convenience Tokens / 6h, max. +8 | $1.59 | one-time |
| Remove Ads | $1.99 | one-time |
| Lifetime Access | $1.99 | one-time |


## Frequently asked questions

### Is Trigonometry calc free?

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

### Is Ratio & Proportion Calculator free?

Ratio & Proportion Calculator is free to download, with in-app purchases available.

### Which has better reviews, Trigonometry calc or Ratio & Proportion Calculator?

Ratio & Proportion Calculator is rated higher. Trigonometry calc averages 3.0 out of 5 from 2 ratings, while Ratio & Proportion Calculator averages 4.7 from 16 ratings.

### Do Trigonometry calc or Ratio & Proportion Calculator have ads?

Trigonometry calc shows ads; Ratio & Proportion Calculator does not.

### Which is updated more often, Trigonometry calc or Ratio & Proportion Calculator?

Trigonometry calc ships an update every 3 months, and Ratio & Proportion Calculator every 3 weeks. Most recently, Trigonometry calc was updated on November 6, 2026 and Ratio & Proportion Calculator on November 3, 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.*