# iGradient vs Protractor

The clearest difference is price: Protractor at Free against iGradient's $2.99. Protractor also leads on update cadence (every 6 weeks vs every 6 months). iGradient's advantage is in-app purchases (none vs 3) and device support (3 vs 1). On ads there is nothing between them.

Protractor is free to download; iGradient costs $2.99 up front. Protractor sells 3 in-app purchases, starting at $4.99 per 7 days. iGradient asks for nothing beyond the download.

iGradient ships an update every 6 months, Protractor every 6 weeks. The most recent releases landed on October 10, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | iGradient | Protractor |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | **[4.3 (7 ratings)](https://appshunter.io/ios/app/igradient/id514399562/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | 93.5% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 6 weeks** |
| Monetization | Free | — |
| Size | 10 MB | 5 MB |
| Requires iOS | **9.3** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Ivan Perre](https://appshunter.io/developer/514399565) | [Phuc Pham](https://appshunter.io/developer/1893081423) |

## What reviewers say

### iGradient

[App page](https://appshunter.io/ios/app/igradient/id514399562)

This app uses your device's sensors to accurately measure any 2D angle. It intelligently detects orientation and provides readings in degrees, radians, or as a gradient. Ideal for various practical applications requiring precise angle measurements.

**Highlights:** Measures 2D angles, Intelligent orientation detection, Reads in degrees, radians, or gradient, Accurate to 1 degree, Switches between horizontal/vertical axis, Holds measurement, No calibration needed

**Features:** macOS Compatibility

**In-app purchases:** none


### Protractor

[App page](https://appshunter.io/ios/app/protractor-angle-finder/id6772273661)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Incline Gauge Weekly | $4.99 | per 7 days |
| Roof Pitch Yearly | $24.99 | per year |
| Bevel & Degree, Pay Once | $49.99 | one-time |


## Frequently asked questions

### Is iGradient free?

iGradient costs $2.99, with no in-app purchases.

### Is Protractor free?

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

### Do iGradient or Protractor have ads?

Neither iGradient nor Protractor shows ads.

### Which is updated more often, iGradient or Protractor?

iGradient ships an update every 6 months, and Protractor every 6 weeks. Most recently, iGradient was updated on October 10, 2026 and Protractor on October 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.*