# 火听调音器 vs 调音器Cat

The clearest difference is in-app purchases: 火听调音器 at none against 调音器Cat's 4. 火听调音器 also leads on iOS requirement (12.0 vs 16.6). 调音器Cat's advantage is ads (none vs shown). On price, update cadence and device support there is nothing between them.

Both are free to download. 调音器Cat sells 4 one-off in-app purchases. 火听调音器 asks for nothing beyond the download.

火听调音器 ships an update every 3 months, 调音器Cat every 2 months. The most recent releases landed on October 30, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | 火听调音器 | 调音器Cat |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (7 ratings)](https://appshunter.io/ios/app/and-and/id1588077175/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | 58.3% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | Free with in-app purchases | — |
| Size | 159 MB | 33 MB |
| Requires iOS | **12.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [广东小叶紫檀科技有限公司](https://appshunter.io/developer/1588077177) | [Wuhan Net Power Technology Co., Ltd](https://appshunter.io/developer/1334612744) |

## What reviewers say

### 火听调音器

[App page](https://appshunter.io/ios/app/and-and/id1588077175)

This app provides precise tuning for various string instruments like guitar, ukulele, and bass. It offers automatic tuning modes and clear visual feedback, making it suitable for both beginners and experienced musicians.

**Highlights:** Precise tuning for guitar, ukulele, bass, Automatic tuning modes, Clear visual feedback, Suitable for beginners and professionals, Supports acoustic and electric guitars, Signal recording

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

**In-app purchases:** none


### 调音器Cat

[App page](https://appshunter.io/ios/app/cat/id6759902960)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 月度会员 | $0.99 | one-time |
| 年度会员 | $3.99 | one-time |
| 两年会员 | $5.99 | one-time |
| 永久会员 | $5.99 | one-time |


## Frequently asked questions

### Is 火听调音器 free?

火听调音器 is free to download, with no in-app purchases.

### Is 调音器Cat free?

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

### Do 火听调音器 or 调音器Cat have ads?

火听调音器 shows ads; 调音器Cat does not.

### Which is updated more often, 火听调音器 or 调音器Cat?

火听调音器 ships an update every 3 months, and 调音器Cat every 2 months. Most recently, 火听调音器 was updated on October 30, 2026 and 调音器Cat on October 28, 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.*