# 键盘移调器 vs EasyChord

The clearest difference is price: 键盘移调器 at Free against EasyChord's $3.99. 键盘移调器 also leads on update cadence (every 2 days vs every 10 days). EasyChord's advantage is in-app purchases (none vs 4). On ads, device support and iOS requirement there is nothing between them.

键盘移调器 is free to download; EasyChord costs $3.99 up front. 键盘移调器 sells 4 in-app purchases, starting at $0.99 per month. EasyChord asks for nothing beyond the download.

键盘移调器 ships an update every 2 days, EasyChord every 10 days. The most recent releases landed on October 31, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | 键盘移调器 | EasyChord |
| --- | --- | --- |
| Price | **Free** | $3.99 |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 10 days |
| Monetization | — | Paid |
| Size | 4 MB | 31 MB |
| Requires iOS | 17.0 | **16.0** |
| Devices | iPhone, iPad | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [宇 曹](https://appshunter.io/developer/6786107047) | [Guangzhou Yaotian Cloud Technology Co., Ltd](https://appshunter.io/developer/1849409785) |

## What reviewers say

### 键盘移调器

[App page](https://appshunter.io/ios/app/id6786140909)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Transposer Pro Monthly | $0.99 | per month |
| Transposer Pro Semiannual | $7.99 | per 6 months |
| Transposer Pro Yearly | $14.99 | per year |
| Transposer Pro Lifetime | $29.99 | one-time |


### EasyChord

[App page](https://appshunter.io/ios/app/easychord/id6803410395)

This app helps you identify chords within a chosen key and play their constituent notes on a keyboard. Practice by selecting major or minor keys and chord ranges, then play the correct notes after hearing the chord. It supports both on-screen and external MIDI keyboards.

**Highlights:** Chord identification in selected key, Play constituent notes on keyboard, On-screen and MIDI keyboard support, Practice with major/minor keys, Chord range selection, Listen to chords, Finger placement hints

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is 键盘移调器 free?

键盘移调器 is free to download, with in-app purchases available.

### Is EasyChord free?

EasyChord costs $3.99, with no in-app purchases.

### Do 键盘移调器 or EasyChord have ads?

Neither 键盘移调器 nor EasyChord shows ads.

### Which is updated more often, 键盘移调器 or EasyChord?

键盘移调器 ships an update every 2 days, and EasyChord every 10 days. Most recently, 键盘移调器 was updated on October 31, 2026 and EasyChord on October 29, 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.*