# Calliope Sim vs jAmpler

The clearest difference is rating: Calliope Sim at 5.0 against jAmpler's 4.2. Calliope Sim also leads on iOS requirement (12.0 vs 14.0). jAmpler's advantage is ads (none vs shown) and ratings volume (6 vs 1). On price, update cadence, in-app purchases and monetization model there is nothing between them.

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

Calliope Sim holds the better App Store score, 5.0 against 4.2. That said, the two scores are not equally well evidenced: jAmpler has 6 ratings behind it against 1, so its average is the more settled of the two.

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on October 1, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Calliope Sim | jAmpler |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/calliope-sim/id6740209595/reviews)** | [4.2 (6 ratings)](https://appshunter.io/ios/app/jampler/id6757974471/reviews) |
| Number of ratings | 1 | **6** |
| Positive reviews | — | 60.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | Every 3 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 114 MB | 1.4 GB |
| Requires iOS | **12.0** | 14.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Alper Kahriman](https://appshunter.io/developer/1054578352) | [Jan Maes](https://appshunter.io/developer/1550506252) |

## What reviewers say

### 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 |


### jAmpler

[App page](https://appshunter.io/ios/app/jampler/id6757974471)

Record, import, and manipulate audio samples with a versatile instrument plugin. Create unique sounds using granular synthesis and a wide array of effects. Assign samples to a keyboard for intuitive musical performance.

**Highlights:** Record and import audio samples, Assign samples to keyboard keys, Granular synthesis controls, Extensive per-sample editing, Global effects suite, Adjustable velocity curve and temperament

**Features:** Family Sharing, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| jAmpler Activation | $7.99 | one-time |


## Frequently asked questions

### Is Calliope Sim free?

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

### Is jAmpler free?

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

### Which has better reviews, Calliope Sim or jAmpler?

Calliope Sim is rated higher. Calliope Sim averages 5.0 out of 5 from 1 ratings, while jAmpler averages 4.2 from 6 ratings.

### Do Calliope Sim or jAmpler have ads?

Calliope Sim shows ads; jAmpler does not.

### Which is updated more often, Calliope Sim or jAmpler?

Calliope Sim ships an update every 3 months, and jAmpler every 3 months. Most recently, Calliope Sim was updated on October 1, 2026 and jAmpler on October 11, 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.*