# Viola Tuner Basic vs JTL調音器 節拍器 樂器學習必備

The clearest difference is in-app purchases: JTL調音器 節拍器 樂器學習必備 at none against Viola Tuner Basic's 5. Viola Tuner Basic's advantage is update cadence (every 2 weeks vs every 3 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Viola Tuner Basic sells 5 one-off in-app purchases. JTL調音器 節拍器 樂器學習必備 asks for nothing beyond the download.

Viola Tuner Basic ships an update every 2 weeks, JTL調音器 節拍器 樂器學習必備 every 3 months. The most recent releases landed on September 29, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | Viola Tuner Basic | JTL調音器 節拍器 樂器學習必備 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.1 (194 ratings)](https://appshunter.io/ios/app/viola-tuner-basic/id1420916705/reviews)** | — |
| Number of ratings | **194** | — |
| Positive reviews | 37.5% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | **Every 2 weeks** | Every 3 months |
| Monetization | Free with in-app purchases | — |
| Size | 12 MB | 24 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Pedro Daniel Macalupu Cumpen](https://appshunter.io/developer/492172409) | [Shan-Chun Hu](https://appshunter.io/developer/6773007974) |

## 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 |
| --- | --- | --- |
| Remove ads | $3.99 | one-time |
| A4 Calibrations 392Hz to 466Hz | $3.99 | one-time |
| Settings | $3.99 | one-time |
| Tuning Fork | $3.99 | one-time |
| Metronome | $3.99 | one-time |


### JTL調音器 節拍器 樂器學習必備

[App page](https://appshunter.io/ios/app/jtl/id6773007972)

**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 JTL調音器 節拍器 樂器學習必備 free?

JTL調音器 節拍器 樂器學習必備 is free to download, with no in-app purchases.

### Do Viola Tuner Basic or JTL調音器 節拍器 樂器學習必備 have ads?

Both Viola Tuner Basic and JTL調音器 節拍器 樂器學習必備 show ads.

### Which is updated more often, Viola Tuner Basic or JTL調音器 節拍器 樂器學習必備?

Viola Tuner Basic ships an update every 2 weeks, and JTL調音器 節拍器 樂器學習必備 every 3 months. Most recently, Viola Tuner Basic was updated on September 29, 2026 and JTL調音器 節拍器 樂器學習必備 on September 21, 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.*