# Protractor (Angle measurement) vs Keeps

The clearest difference is in-app purchases: Protractor (Angle measurement) at none against Keeps's 1. Protractor (Angle measurement) also leads on iOS requirement (13.0 vs 16.4). Keeps's advantage is ads (none vs shown) and update cadence (every 5 days vs every 5 weeks). On price and device support there is nothing between them.

Both are free to download. Keeps sells 1 one-off in-app purchase. Protractor (Angle measurement) asks for nothing beyond the download.

Protractor (Angle measurement) ships an update every 5 weeks, Keeps every 5 days. The most recent releases landed on October 18, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Protractor (Angle measurement) | Keeps |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.6 (10 ratings)](https://appshunter.io/ios/app/protractor-angle-measurement/id926663865/reviews)** | — |
| Number of ratings | **10** | — |
| Positive reviews | 68.1% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 5 weeks | **Every 5 days** |
| Monetization | Ad-supported | — |
| Size | 7 MB | 62 MB |
| Requires iOS | **13.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [EONSOFT](https://appshunter.io/developer/899851112) | [Rosser Labs](https://appshunter.io/developer/1448704458) |

## What reviewers say

### Protractor (Angle measurement)

[App page](https://appshunter.io/ios/app/protractor-angle-measurement/id926663865)

Measure angles of objects using your device's camera. This utility app acts as a digital protractor, allowing you to accurately determine angles in real-world scenarios. Perfect for when a physical protractor is unavailable.

**Highlights:** Camera-based angle measurement, Digital protractor functionality, Measure angles of objects, Real-world angle determination

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Free and functional
- 👍 Accurate measurements
- 👍 Useful for homework
- 👍 Handy when needed
- 👍 Better than others

**What reviewers complain about**

- 👎 Hard to hold steady
- 👎 Camera is blurry
- 👎 Ads can be intrusive
- 👎 Difficult to use on paper
- 👎 Time limit on free version

**Reported bugs**

- Camera is always blurry
- Ads cover buttons
- App is a ghost app, cannot open
- Time limit makes it unusable
- Measures only in radians (free)

**Requested features**

- Ability to freeze image
- Ability to use photos for measurement
- Upload a still image and overlay protractor
- Improve accuracy with shaky hands
- Add option to take a picture and measure


### Keeps

[App page](https://appshunter.io/ios/app/keeps-game-scorekeeper/id6806814136)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Keeps Premium | $6.99 | one-time |


## Frequently asked questions

### Is Protractor (Angle measurement) free?

Protractor (Angle measurement) is free to download, with no in-app purchases.

### Is Keeps free?

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

### Do Protractor (Angle measurement) or Keeps have ads?

Protractor (Angle measurement) shows ads; Keeps does not.

### Which is updated more often, Protractor (Angle measurement) or Keeps?

Protractor (Angle measurement) ships an update every 5 weeks, and Keeps every 5 days. Most recently, Protractor (Angle measurement) was updated on October 18, 2026 and Keeps on October 6, 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.*