# Quick Quake vs Protractor (Angle measurement)

The clearest difference is ads: Quick Quake at none against Protractor (Angle measurement)'s shown. Quick Quake also leads on rating (4.0 vs 3.6) and monetization model (free vs ad-supported). Protractor (Angle measurement)'s advantage is update cadence (every 5 weeks vs every 6 months) and ratings volume (10 vs 2). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Quick Quake holds the better App Store score, 4.0 against 3.6. That said, the two scores are not equally well evidenced: Protractor (Angle measurement) has 10 ratings behind it against 2, so its average is the more settled of the two.

Quick Quake ships an update every 6 months, Protractor (Angle measurement) every 5 weeks. Both last shipped on November 1, 2026.

## The numbers

| Metric | Quick Quake | Protractor (Angle measurement) |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (2 ratings)](https://appshunter.io/ios/app/quick-quake/id743534887/reviews)** | [3.6 (10 ratings)](https://appshunter.io/ios/app/protractor-angle-measurement/id926663865/reviews) |
| Number of ratings | 2 | **10** |
| Positive reviews | — | 68.1% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 6 months | **Every 5 weeks** |
| Monetization | **Free** | Ad-supported |
| Size | 9 MB | 7 MB |
| Requires iOS | **9.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ESS Earth Sciences](https://appshunter.io/developer/1424839112) | [EONSOFT](https://appshunter.io/developer/899851112) |

## What reviewers say

### Quick Quake

[App page](https://appshunter.io/ios/app/quick-quake/id743534887)

This tool allows for rapid earthquake location and magnitude verification. It serves as an educational resource, demonstrating how seismic waves determine earthquake epicenters. Users can quickly analyze data to refine automatic event notifications.

**Highlights:** Rapid earthquake location, Magnitude verification, P and S wave analysis, Demo data for education, Seismic observatory data integration, Adjustable travel velocities and depth

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Quick Quake free?

Quick Quake is free to download, with no in-app purchases.

### Is Protractor (Angle measurement) free?

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

### Which has better reviews, Quick Quake or Protractor (Angle measurement)?

Quick Quake is rated higher. Quick Quake averages 4.0 out of 5 from 2 ratings, while Protractor (Angle measurement) averages 3.6 from 10 ratings.

### Do Quick Quake or Protractor (Angle measurement) have ads?

Protractor (Angle measurement) shows ads; Quick Quake does not.

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

Quick Quake ships an update every 6 months, and Protractor (Angle measurement) every 5 weeks. Most recently, Quick Quake was updated on November 1, 2026 and Protractor (Angle measurement) on November 1, 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.*