# Slope Calculator vs Trigonometry Calculator.

The clearest difference is rating: Trigonometry Calculator. at 5.0 against Slope Calculator's 4.3. Trigonometry Calculator. also leads on review sentiment (100% vs 58%) and update cadence (every 2 weeks vs every 14 months). Slope Calculator's advantage is ads (none vs shown) and ratings volume (104 vs 3). On price, in-app purchases, monetization model and device support there is nothing between them.

Both are free to download. Slope Calculator sells 1 one-off in-app purchase and Trigonometry Calculator. sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

Trigonometry Calculator. holds the better App Store score, 5.0 against 4.3. That said, the two scores are not equally well evidenced: Slope Calculator has 104 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 58% of Slope Calculator's written reviews are positive against 100% of Trigonometry Calculator.'s.

Slope Calculator ships an update every 14 months, Trigonometry Calculator. every 2 weeks. The most recent releases landed on September 16, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | Slope Calculator | Trigonometry Calculator. |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (104 ratings)](https://appshunter.io/ios/app/slope-calculator-calc/id1561129699/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/trigonometry-calculator/id6741517618/reviews)** |
| Number of ratings | **104** | 3 |
| Positive reviews | 58.3% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 14 months | **Every 2 weeks** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 5 MB | 64 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Phan Nhat Đang](https://appshunter.io/developer/1437390098) | [Horitech](https://appshunter.io/developer/1794537335) |

## What reviewers say

### Slope Calculator

[App page](https://appshunter.io/ios/app/slope-calculator-calc/id1561129699)

Calculate slope in angle, percentage, or ratio by inputting two sides of a right triangle. This intuitive and easy-to-use application provides the remaining necessary values.

**Highlights:** Calculate slope as angle, Calculate slope as percentage, Calculate slope as ratio, Input two sides of a right triangle, Calculate remaining triangle values, Intuitive and easy to use

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove ads | $1.99 | one-time |


### Trigonometry Calculator.

[App page](https://appshunter.io/ios/app/trigonometry-calculator/id6741517618)

This app calculates key values for right-angled and scalene triangles with high precision. It offers a user-friendly interface, flexible angle units, and includes a reference guide to trigonometric formulas. A subscription unlocks calculation steps and removes ads.

**Highlights:** Right-angled & scalene triangle support, Formula reference guide, Accurate side, angle, and area calculations, High precision to 14 decimal places, Flexible angle units (degrees/radians), User-friendly interface

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $2.99 | per month |
| Annual | $24.99 | per year |


## Frequently asked questions

### Is Slope Calculator free?

Slope Calculator is free to download, with in-app purchases available.

### Is Trigonometry Calculator. free?

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

### Which has better reviews, Slope Calculator or Trigonometry Calculator.?

Trigonometry Calculator. is rated higher. Slope Calculator averages 4.3 out of 5 from 104 ratings, while Trigonometry Calculator. averages 5.0 from 3 ratings.

### Do Slope Calculator or Trigonometry Calculator. have ads?

Trigonometry Calculator. shows ads; Slope Calculator does not.

### Which is updated more often, Slope Calculator or Trigonometry Calculator.?

Slope Calculator ships an update every 14 months, and Trigonometry Calculator. every 2 weeks. Most recently, Slope Calculator was updated on September 16, 2026 and Trigonometry Calculator. on September 9, 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.*