# 酷键盘 vs Calliope Sim

The clearest difference is rating: Calliope Sim at 5.0 against 酷键盘's 1.0. Calliope Sim also leads on ratings volume (4 vs 1). 酷键盘's advantage is in-app purchases (none vs 1) and ads (none vs shown). On price and device support there is nothing between them.

Both are free to download. Calliope Sim sells 1 one-off in-app purchase. 酷键盘 asks for nothing beyond the download.

Calliope Sim holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 4 respectively.

酷键盘 ships an update every 5 weeks, Calliope Sim every 3 months. The most recent releases landed on November 1, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | 酷键盘 | Calliope Sim |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/id513613457/reviews) | **[5.0 (4 ratings)](https://appshunter.io/ios/app/calliope-sim/id6740209595/reviews)** |
| Number of ratings | 1 | **4** |
| Positive reviews | 43.2% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 5 weeks** | Every 3 months |
| Monetization | — | Free with in-app purchases |
| Size | 132 MB | 114 MB |
| Requires iOS | **8.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [MEET Studio CO.,LTD.](https://appshunter.io/developer/346749745) | [Alper Kahriman](https://appshunter.io/developer/1054578352) |

## What reviewers say

### 酷键盘

[App page](https://appshunter.io/ios/app/id513613457)

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 🎶 Beautiful songs
- 🎹 Great for beginners
- ✨ Amazing app
- 🎵 Fun to play
- 👍 Easy to use

**What reviewers complain about**

- 🐛 Crashing frequently
- 🐛 Freezes often
- 🐛 Won't load
- 🐛 Doesn't work
- 🐛 Incompatible with older devices

**Reported bugs**

- Constantly displays cannot load
- Does not work
- Not compatible with iOS 8
- Does not start up
- Unlocks songs but cannot play them

**Requested features**

- More songs
- English version
- Language option
- Bring back English version
- Add English language


### Calliope Sim

[App page](https://appshunter.io/ios/app/calliope-sim/id6740209595)

Experience the nostalgic charm of traditional fairgrounds and circuses with this realistic calliope simulator. It offers authentic sounds and advanced features like microtonal tuning and reverb for expressive musical performances. Record and share your creations easily.

**Highlights:** Authentic calliope sound sample, Microtonal tuning, Transpose adjustment, Reverb effects, Chorus mode, Dynamic key sensitivity, Built-in recorder, Shareable performances

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Get Premium | $7.99 | one-time |


## Frequently asked questions

### Is 酷键盘 free?

酷键盘 is free to download, with no in-app purchases.

### Is Calliope Sim free?

Calliope Sim is free to download, with in-app purchases available.

### Which has better reviews, 酷键盘 or Calliope Sim?

Calliope Sim is rated higher. 酷键盘 averages 1.0 out of 5 from 1 ratings, while Calliope Sim averages 5.0 from 4 ratings.

### Do 酷键盘 or Calliope Sim have ads?

Calliope Sim shows ads; 酷键盘 does not.

### Which is updated more often, 酷键盘 or Calliope Sim?

酷键盘 ships an update every 5 weeks, and Calliope Sim every 3 months. Most recently, 酷键盘 was updated on November 1, 2026 and Calliope Sim on October 24, 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.*