# KamarApp vs Viola Tuner

The clearest difference is in-app purchases: KamarApp at none against Viola Tuner's 2. KamarApp also leads on ads (none vs shown). Viola Tuner's advantage is iOS requirement (12.0 vs 17.0). On price, update cadence and device support there is nothing between them.

Both are free to download. Viola Tuner sells 2 in-app purchases, starting at $2.99 per 7 days. KamarApp asks for nothing beyond the download.

KamarApp ships an update every 2 weeks, Viola Tuner every 3 weeks. The most recent releases landed on October 4, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | KamarApp | Viola Tuner |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.1 (9 ratings)](https://appshunter.io/ios/app/viola-tuner-xtuner-pro/id6744968300/reviews)** |
| Number of ratings | — | **9** |
| Positive reviews | — | 25.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 2 weeks** | Every 3 weeks |
| Monetization | — | Free with in-app purchases |
| Size | 46 MB | 54 MB |
| Requires iOS | 17.0 | **12.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Balint Jozsef Vizeli](https://appshunter.io/developer/1436690000) | [NETIGEN Kluzowicz sp. j.](https://appshunter.io/developer/892331873) |

## What reviewers say

### KamarApp

[App page](https://appshunter.io/ios/app/kamarapp/id6444498271)

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

**In-app purchases:** none


### Viola Tuner

[App page](https://appshunter.io/ios/app/viola-tuner-xtuner-pro/id6744968300)

This application offers a precise and user-friendly way to tune your viola. It features professional sound recordings and advanced algorithms for accurate pitch recognition, with multiple tuning modes available. The app works offline and provides advanced settings for musicians.

**Highlights:** Professional viola sound recordings, Offline tuning capabilities, Auto tune, manual, and chromatic modes, Adjustable concert pitch (Hz), Deviation display in cents, Custom tuning and presets

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 week subscription + trial | $2.99 | per 7 days |
| Forever one-time payment | $19.99 | one-time |


## Frequently asked questions

### Is KamarApp free?

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

### Is Viola Tuner free?

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

### Do KamarApp or Viola Tuner have ads?

Viola Tuner shows ads; KamarApp does not.

### Which is updated more often, KamarApp or Viola Tuner?

KamarApp ships an update every 2 weeks, and Viola Tuner every 3 weeks. Most recently, KamarApp was updated on October 4, 2026 and Viola Tuner on October 10, 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.*