# Violin Tuner vs Protractor (Angle measurement)

The clearest difference is rating: Violin Tuner at 4.3 against Protractor (Angle measurement)'s 3.4. Violin Tuner also leads on ratings volume (1.5K vs 5). Protractor (Angle measurement)'s advantage is update cadence (every 5 weeks vs every 16 months) and review sentiment (68% vs 42%). On price, ads, in-app purchases and monetization model there is nothing between them.

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

Violin Tuner holds the better App Store score, 4.3 against 3.4. That said, the two scores are not equally well evidenced: Violin Tuner has 1.5K ratings behind it against 5, so its average is the more settled of the two. Written reviews complicate that: 42% of Violin Tuner's written reviews are positive against 68% of Protractor (Angle measurement)'s, so the app with the better star average is not the one people write more warmly about.

Violin Tuner ships an update every 16 months, Protractor (Angle measurement) every 5 weeks. The most recent releases landed on September 25, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | Violin Tuner | Protractor (Angle measurement) |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (1.5K ratings)](https://appshunter.io/ios/app/violin-tuner-simple/id336430939/reviews)** | [3.4 (5 ratings)](https://appshunter.io/ios/app/protractor-angle-measurement/id926663865/reviews) |
| Number of ratings | **1.5K** | 5 |
| Positive reviews | 41.7% of reviews | **68.1% of reviews** |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 16 months | **Every 5 weeks** |
| Monetization | Ad-supported | Ad-supported |
| Size | 9 MB | 7 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Alvin Yu](https://appshunter.io/developer/310457194) | [EONSOFT](https://appshunter.io/developer/899851112) |

## What reviewers say

### Violin Tuner

[App page](https://appshunter.io/ios/app/violin-tuner-simple/id336430939)

This application provides accurate tuning notes for the violin, covering the standard G, D, A, and E strings. It's a straightforward tool designed to help musicians achieve precise intonation for their instrument.

**Highlights:** Plays G tuning note, Plays D tuning note, Plays A tuning note, Plays E tuning note, Simple interface

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

**In-app purchases:** none

**What reviewers like**

- 👍 Simple and easy to use
- 🎻 Helpful for tuning violins
- 💡 Useful for beginners

**What reviewers complain about**

- 🐛 Inconsistent sound quality
- ⏱️ Notes play for too short a duration
- 🔊 Sounds like an entire orchestra playing, not a single violin

**Reported bugs**

- Buttons don't always register input
- App crashes or freezes on some devices
- No sound output on certain devices

**Requested features**

- Longer note duration
- Chromatic tuner functionality
- Ability to detect if string is flat or sharp


### 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 Violin Tuner free?

Violin Tuner 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, Violin Tuner or Protractor (Angle measurement)?

Violin Tuner is rated higher. Violin Tuner averages 4.3 out of 5 from 1.5K ratings, while Protractor (Angle measurement) averages 3.4 from 5 ratings.

### Do Violin Tuner or Protractor (Angle measurement) have ads?

Both Violin Tuner and Protractor (Angle measurement) show ads.

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

Violin Tuner ships an update every 16 months, and Protractor (Angle measurement) every 5 weeks. Most recently, Violin Tuner was updated on September 25, 2026 and Protractor (Angle measurement) on September 22, 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.*