# Ampero Control vs 钢琴巴士

The clearest difference is rating: Ampero Control at 1.9 against 钢琴巴士's 1.0. Ampero Control also leads on in-app purchases (none vs 13) and ratings volume (61 vs 1). 钢琴巴士's advantage is review sentiment (44% vs 13%) and update cadence (every 2 weeks vs every 14 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. 钢琴巴士 sells 13 one-off in-app purchases. Ampero Control asks for nothing beyond the download.

Ampero Control holds the better App Store score, 1.9 against 1.0. That said, the two scores are not equally well evidenced: Ampero Control has 61 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 13% of Ampero Control's written reviews are positive against 44% of 钢琴巴士's, so the app with the better star average is not the one people write more warmly about.

Ampero Control ships an update every 14 months, 钢琴巴士 every 2 weeks. The most recent releases landed on October 22, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Ampero Control | 钢琴巴士 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.9 (61 ratings)](https://appshunter.io/ios/app/ampero-control/id1526244402/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/id1607244680/reviews) |
| Number of ratings | **61** | 1 |
| Positive reviews | 13.0% of reviews | **44.4% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 14 months | **Every 2 weeks** |
| Monetization | Free | — |
| Size | 38 MB | 103 MB |
| Requires iOS | 13.0 | **12** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Hotone](https://appshunter.io/developer/982536111) | [Shanghai Music Publishing House Co., Ltd.](https://appshunter.io/developer/651417370) |

## What reviewers say

### Ampero Control

[App page](https://appshunter.io/ios/app/ampero-control/id1526244402)

This app simplifies the setup and control of a Bluetooth MIDI controller. Easily manage presets, effects, and MIDI messages with a clean interface and pre-made or custom templates. Take full command of your musical gear without complex menus.

**Highlights:** Easy-to-use UI for MIDI controller setup, MIDI template management for presets and effects, Save and customize your own MIDI templates, Control MIDI messages via footswitches and expression pedals, On-the-fly controller adjustments, Supports standard, USB, and Bluetooth MIDI

**Features:** macOS Compatibility

**In-app purchases:** none


### 钢琴巴士

[App page](https://appshunter.io/ios/app/id1607244680)

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

**In-app purchases (13)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ABRSM英皇考级精选录播课（二级）-vip专属 | $4.99 | one-time |
| ABRSM英皇考级精选录播课（七级）-vip专属 | $6.99 | one-time |
| ABRSM英皇考级精选录播课（六级）-vip专属 | $6.99 | one-time |
| ABRSM英皇考级精选录播课（七级） | $7.99 | one-time |
| ABRSM英皇考级精选录播课（一级）-vip专属 | $7.99 | one-time |
| ABRSM英皇考级精选录播课（初级）-vip专属 | $9.99 | one-time |
| ABRSM英皇考级精选录播课（三级）-vip专属 | $9.99 | one-time |
| ABRSM英皇考级精选录播课（四级）-vip专属 | $9.99 | one-time |
| ABRSM英皇考级精选录播课（八级）-vip专属 | $9.99 | one-time |
| ABRSM英皇考级精选录播课（五级）-vip专属 | $12.99 | one-time |
| 钢琴巴士月卡会员 | $12.99 | one-time |
| 全年陪练卡 | $99.99 | one-time |
| 优惠年卡会员 | $149.99 | one-time |


## Frequently asked questions

### Is Ampero Control free?

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

### Is 钢琴巴士 free?

钢琴巴士 is free to download, with in-app purchases available.

### Which has better reviews, Ampero Control or 钢琴巴士?

Ampero Control is rated higher. Ampero Control averages 1.9 out of 5 from 61 ratings, while 钢琴巴士 averages 1.0 from 1 ratings.

### Do Ampero Control or 钢琴巴士 have ads?

Neither Ampero Control nor 钢琴巴士 shows ads.

### Which is updated more often, Ampero Control or 钢琴巴士?

Ampero Control ships an update every 14 months, and 钢琴巴士 every 2 weeks. Most recently, Ampero Control was updated on October 22, 2026 and 钢琴巴士 on October 30, 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.*