# Viola Tuner Basic vs AltoClef

The clearest difference is review sentiment: AltoClef at 100% against Viola Tuner Basic's 38%. AltoClef also leads on rating (5.0 vs 4.1) and in-app purchases (none vs 5). Viola Tuner Basic's advantage is ratings volume (194 vs 5). On price and device support there is nothing between them.

Both are free to download. Viola Tuner Basic sells 5 one-off in-app purchases. AltoClef asks for nothing beyond the download.

AltoClef holds the better App Store score, 5.0 against 4.1. That said, the two scores are not equally well evidenced: Viola Tuner Basic has 194 ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 38% of Viola Tuner Basic's written reviews are positive against 100% of AltoClef's.

Viola Tuner Basic ships an update every 2 weeks, AltoClef daily. The most recent releases landed on October 7, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | Viola Tuner Basic | AltoClef |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.1 (194 ratings)](https://appshunter.io/ios/app/viola-tuner-basic/id1420916705/reviews) | **[5.0 (5 ratings)](https://appshunter.io/ios/app/altoclef/id1627977451/reviews)** |
| Number of ratings | **194** | 5 |
| Positive reviews | 37.5% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 2 weeks | **Daily** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 12 MB | 1 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Pedro Daniel Macalupu Cumpen](https://appshunter.io/developer/492172409) | [Khaleel Jamal Annajjar](https://appshunter.io/developer/1419755574) |

## What reviewers say

### Viola Tuner Basic

[App page](https://appshunter.io/ios/app/viola-tuner-basic/id1420916705)

Instantly tune your viola with precision and ease. This app offers ultra-accurate frequency display, adjustable A4 temperaments, and intuitive LED guidance. It's perfect for musicians of all levels, from beginners to professionals.

**Highlights:** Ultra-accurate frequency display (Hz), Adjustable A4 temperaments (392Hz–466Hz), LED tuning indicator, Tuned string lights up on screen, High sensitivity and fast response, Tuning fork (IAP), Advanced settings (IAP)

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| A4 Calibrations 392Hz to 466Hz | $4.99 | one-time |
| Settings | $4.99 | one-time |
| Tuning Fork | $4.99 | one-time |
| Remove ads | $4.99 | one-time |
| Metronome | $4.99 | one-time |


### AltoClef

[App page](https://appshunter.io/ios/app/altoclef/id1627977451)

A game designed to help viola players improve their sight-reading speed. It offers a focused learning experience for musicians looking to master alto clef notation.

**Highlights:** Sight-reading practice, Alto clef focus, Viola player learning, Basic gameplay, Future updates planned

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

**In-app purchases:** none


## Frequently asked questions

### Is Viola Tuner Basic free?

Viola Tuner Basic is free to download, with in-app purchases available.

### Is AltoClef free?

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

### Which has better reviews, Viola Tuner Basic or AltoClef?

AltoClef is rated higher. Viola Tuner Basic averages 4.1 out of 5 from 194 ratings, while AltoClef averages 5.0 from 5 ratings.

### Do Viola Tuner Basic or AltoClef have ads?

Viola Tuner Basic shows ads; AltoClef does not.

### Which is updated more often, Viola Tuner Basic or AltoClef?

Viola Tuner Basic ships an update every 2 weeks, and AltoClef daily. Most recently, Viola Tuner Basic was updated on October 7, 2026 and AltoClef on September 24, 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.*