# Cello Sim vs Simple Trombone

The clearest difference is update cadence: Simple Trombone at every 4 weeks against Cello Sim's every 3 months. On price, ads, in-app purchases and device support there is nothing between them.

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

Cello Sim ships an update every 3 months, Simple Trombone every 4 weeks. The most recent releases landed on September 20, 2026 and August 22, 2026 respectively.

## The numbers

| Metric | Cello Sim | Simple Trombone |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.1 (9 ratings)](https://appshunter.io/ios/app/cello-sim/id6739635244/reviews)** | — |
| Number of ratings | **9** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 3 months | **Every 4 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 186 MB | 129 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Alper Kahriman](https://appshunter.io/developer/1054578352) | [Mustafa Demir](https://appshunter.io/developer/1204716531) |

## What reviewers say

### 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 |


### Simple Trombone

[App page](https://appshunter.io/ios/app/simple-trombone/id6756773451)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Get Premium | $4.99 | one-time |


## Frequently asked questions

### Is Cello Sim free?

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

### Is Simple Trombone free?

Simple Trombone is free to download, with in-app purchases available.

### Do Cello Sim or Simple Trombone have ads?

Both Cello Sim and Simple Trombone show ads.

### Which is updated more often, Cello Sim or Simple Trombone?

Cello Sim ships an update every 3 months, and Simple Trombone every 4 weeks. Most recently, Cello Sim was updated on September 20, 2026 and Simple Trombone on August 22, 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.*