# IdiophoneSS IA vs Celesta Sim

The clearest difference is rating: Celesta Sim at 4.7 against IdiophoneSS IA's 3.8. IdiophoneSS IA's advantage is ads (none vs shown) and update cadence (every 3 weeks vs every 4 months). On price, ratings volume, in-app purchases and monetization model there is nothing between them.

Both are free to download. IdiophoneSS IA sells 18 one-off in-app purchases and Celesta Sim sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Celesta Sim holds the better App Store score, 4.7 against 3.8. Both are backed by a comparable volume of ratings — 4 and 3 respectively.

IdiophoneSS IA ships an update every 3 weeks, Celesta Sim every 4 months. The most recent releases landed on October 29, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | IdiophoneSS IA | Celesta Sim |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.8 (4 ratings)](https://appshunter.io/ios/app/idiophoness-ia/id786821260/reviews) | **[4.7 (3 ratings)](https://appshunter.io/ios/app/celesta-sim/id6738886432/reviews)** |
| Number of ratings | **4** | 3 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 3 weeks** | Every 4 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 231 MB | 119 MB |
| Requires iOS | **9.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [YUJI HASEBE](https://appshunter.io/developer/365889232) | [Alper Kahriman](https://appshunter.io/developer/1054578352) |

## What reviewers say

### IdiophoneSS IA

[App page](https://appshunter.io/ios/app/idiophoness-ia/id786821260)

Explore a variety of idiophone instruments, including castanets and the triangle, with the ability to record and play along with other music apps. Additional instruments are available for purchase.

**Highlights:** 24 idiophone instruments, Record and play audio, Play along with other music apps, iTunes file sharing support, Volume slider, Display scale on keyboard

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

**In-app purchases (18)**

| Purchase | Price | Billing |
| --- | --- | --- |
| HyoshigiSS | $0.99 | one-time |
| MaracasSS | $0.99 | one-time |
| GuiroSS | $1.99 | one-time |
| CaxixiSS | $1.99 | one-time |
| ClavesSS | $1.99 | one-time |
| SingingBowlsSS | $1.99 | one-time |
| JawHarpSS | $1.99 | one-time |
| FlexatoneSS | $1.99 | one-time |
| ShakerSS | $1.99 | one-time |
| WashboardSS | $1.99 | one-time |
| TingshaSS | $1.99 | one-time |
| ToereSS | $1.99 | one-time |
| OceanDrumSS | $1.99 | one-time |
| AngklungSS | $2.99 | one-time |
| LogdrumSS | $2.99 | one-time |
| UduSS | $2.99 | one-time |
| GlassArmonicaSS | $3.99 | one-time |
| RemoveAds | $3.99 | one-time |


### Celesta Sim

[App page](https://appshunter.io/ios/app/celesta-sim/id6738886432)

This app brings the enchanting, bell-like tones of the celesta to your fingertips. Explore authentic sounds, multiple play modes, and built-in effects to create and share your music.

**Highlights:** Authentic celesta sound samples, Multiple sound and play modes, Real-time reverb and chorus effects, Sensitive touch dynamics, Microtonal tuning, Built-in audio recorder, Customizable keyboard layout

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Get Premium | $9.99 | one-time |


## Frequently asked questions

### Is IdiophoneSS IA free?

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

### Is Celesta Sim free?

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

### Which has better reviews, IdiophoneSS IA or Celesta Sim?

Celesta Sim is rated higher. IdiophoneSS IA averages 3.8 out of 5 from 4 ratings, while Celesta Sim averages 4.7 from 3 ratings.

### Do IdiophoneSS IA or Celesta Sim have ads?

Celesta Sim shows ads; IdiophoneSS IA does not.

### Which is updated more often, IdiophoneSS IA or Celesta Sim?

IdiophoneSS IA ships an update every 3 weeks, and Celesta Sim every 4 months. Most recently, IdiophoneSS IA was updated on October 29, 2026 and Celesta 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.*