# 中阮调音器 vs Tuner B2

The clearest difference is review sentiment: 中阮调音器 at 100% against Tuner B2's 86%. 中阮调音器 also leads on device support (3 vs 1) and iOS requirement (13.0 vs 16.0). On price, ads and in-app purchases there is nothing between them.

Both are free to download. 中阮调音器 sells 1 one-off in-app purchase and Tuner B2 sells 2 in-app purchases, starting at $1.99 per year. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | 中阮调音器 | Tuner B2 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/id6504571464/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | **100.0% of reviews** | 85.7% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | — | Every 2 weeks |
| Monetization | — | Freemium |
| Size | 40 MB | 5 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 9+ |
| Developer | [鑫磊 张](https://appshunter.io/developer/1051215758) | [守群 赵](https://appshunter.io/developer/963658407) |

## What reviewers say

### 中阮调音器

[App page](https://appshunter.io/ios/app/id6504571464)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 中阮调音器VIP | $5.99 | one-time |


### Tuner B2

[App page](https://appshunter.io/ios/app/tuner-b2/id6755300645)

This app precisely tunes a wide variety of string and wind instruments using real-time audio analysis. It offers automatic pitch detection, octave display, and support for alternate tunings, making it a versatile tool for musicians.

**Highlights:** Automatic pitch detection, Real-time frequency display, Support for numerous instruments, Alternate tuning options, Semitone tuning, Octave display

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Annual subscription | $1.99 | per year |
| Lifetime membership | $29.99 | one-time |


## Frequently asked questions

### Is 中阮调音器 free?

中阮调音器 is free to download, with in-app purchases available.

### Is Tuner B2 free?

Tuner B2 is free to download, with in-app purchases available.

### Do 中阮调音器 or Tuner B2 have ads?

Neither 中阮调音器 nor Tuner B2 shows ads.

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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.*