# 酷键盘 vs Cello Sim

The clearest difference is review sentiment: 酷键盘 at 43% against Cello Sim's 0%. 酷键盘 also leads on ads (none vs shown) and update cadence (every 5 weeks vs every 3 months). Cello Sim's advantage is rating (4.1 vs 1.0) and ratings volume (9 vs 1). On price, in-app purchases and device support there is nothing between them.

Both are free to download. 酷键盘 sells 10 one-off in-app purchases and Cello Sim sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Cello Sim holds the better App Store score, 4.1 against 1.0. That said, the two scores are not equally well evidenced: Cello Sim has 9 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 43% of 酷键盘's written reviews are positive against 0% of Cello Sim's, so the app with the better star average is not the one people write more warmly about.

酷键盘 ships an update every 5 weeks, Cello Sim every 3 months. The most recent releases landed on June 10, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | 酷键盘 | Cello Sim |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/id513613457/reviews) | **[4.1 (9 ratings)](https://appshunter.io/ios/app/cello-sim/id6739635244/reviews)** |
| Number of ratings | 1 | **9** |
| Positive reviews | **43.2% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 5 weeks** | Every 3 months |
| Monetization | — | Free with in-app purchases |
| Size | 132 MB | 186 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 (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Classic Songs | $3.99 | one-time |
| Unlock Category of European and American Pop Songs | $3.99 | one-time |
| Unlock Category of Game and Comic Songs | $3.99 | one-time |
| Unlock Category of Jay | $3.99 | one-time |
| Unlock Category of Love Songs | $3.99 | one-time |
| Unlock Band Songs | $9.99 | one-time |
| One Month VIP | $12.99 | one-time |
| Unlock All | $29.99 | one-time |
| Six Month VIP | $41.99 | one-time |
| One Year VIP | $59.99 | one-time |


### Cello Sim

[App page](https://appshunter.io/ios/app/cello-sim/id6739635244)

Experience the rich, emotional tones of the cello with this simulator app. It offers authentic sampled sounds, advanced features like microtonal tuning and reverb, and multiple play modes. Record and share your performances with ease.

**Highlights:** Authentic cello sounds, Orchestral and extra-orchestral tones, Microtonal tuning, Adjustable reverb and chorus, Dynamic key sensitivity, Built-in recorder, Screen recording

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

**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 in-app purchases available.

### Is Cello Sim free?

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

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

Cello Sim is rated higher. 酷键盘 averages 1.0 out of 5 from 1 ratings, while Cello Sim averages 4.1 from 9 ratings.

### Do 酷键盘 or Cello Sim have ads?

Cello Sim shows ads; 酷键盘 does not.

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

酷键盘 ships an update every 5 weeks, and Cello Sim every 3 months. Most recently, 酷键盘 was updated on June 10, 2026 and Cello Sim on September 20, 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.*