# Trigonometry Calculator SinCos vs Protractor Tool app

The clearest difference is price: Protractor Tool app at Free against Trigonometry Calculator SinCos's $1.99. Protractor Tool app also leads on update cadence (every 3 weeks vs every 2 months). Trigonometry Calculator SinCos's advantage is in-app purchases (none vs 1) and ads (none vs shown). On device support there is nothing between them.

Protractor Tool app is free to download; Trigonometry Calculator SinCos costs $1.99 up front. Protractor Tool app sells 1 in-app purchase, starting at $1.99 per 7 days. Trigonometry Calculator SinCos asks for nothing beyond the download.

Trigonometry Calculator SinCos ships an update every 2 months, Protractor Tool app every 3 weeks. The most recent releases landed on September 25, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | Trigonometry Calculator SinCos | Protractor Tool app |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | **[1.3 (3 ratings)](https://appshunter.io/ios/app/trigonometry-calculator-sincos/id6475329940/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | Paid | — |
| Size | 56 MB | 15 MB |
| Requires iOS | **12.0** | 18.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Kantaben Gorasiya](https://appshunter.io/developer/1640260396) | [ES SOLUTIONS SMC-PRIVATE LIMITED](https://appshunter.io/developer/1770521364) |

## What reviewers say

### Trigonometry Calculator SinCos

[App page](https://appshunter.io/ios/app/trigonometry-calculator-sincos/id6475329940)

This app calculates sides, angles, and area for right-angled triangles. It also computes various trigonometric functions and provides a comprehensive collection of trigonometric formulas and laws.

**Highlights:** Right triangle solver, Trigonometric function calculator, Formulas and laws collection, Calculate sides, angles, and area, Degrees and radians support

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

**In-app purchases:** none


### Protractor Tool app

[App page](https://appshunter.io/ios/app/protractor-tool-app/id6752771015)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Subscription | $1.99 | per 7 days |


## Frequently asked questions

### Is Trigonometry Calculator SinCos free?

Trigonometry Calculator SinCos costs $1.99, with no in-app purchases.

### Is Protractor Tool app free?

Protractor Tool app is free to download, with in-app purchases available.

### Do Trigonometry Calculator SinCos or Protractor Tool app have ads?

Protractor Tool app shows ads; Trigonometry Calculator SinCos does not.

### Which is updated more often, Trigonometry Calculator SinCos or Protractor Tool app?

Trigonometry Calculator SinCos ships an update every 2 months, and Protractor Tool app every 3 weeks. Most recently, Trigonometry Calculator SinCos was updated on September 25, 2026 and Protractor Tool app 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.*