# Keyboard instrumentSS IA vs Celesta Sim

The clearest difference is ads: Keyboard instrumentSS IA at none against Celesta Sim's shown. Keyboard instrumentSS IA also leads on update cadence (monthly vs every 4 months) and iOS requirement (9.0 vs 12.0). On price, in-app purchases, monetization model and device support there is nothing between them.

Both are free to download. Keyboard instrumentSS IA sells 15 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.

Keyboard instrumentSS IA ships an update monthly, Celesta Sim every 4 months. The most recent releases landed on October 10, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Keyboard instrumentSS IA | Celesta Sim |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/celesta-sim/id6738886432/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Monthly** | Every 4 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 268 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

### Keyboard instrumentSS IA

[App page](https://appshunter.io/ios/app/keyboard-instrumentss-ia/id662811453)

This app offers a virtual keyboard experience with 26 different instruments, including a free piano. Record your playing, vocals, or voice memos and share them via email. It also allows you to play along with music from other apps.

**Highlights:** 26 virtual instruments, Free piano included, Recording function, Email audio sharing, Play along with other music apps, iTunes file sharing support

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

**In-app purchases (15)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ElectricPianoSS | $0.99 | one-time |
| ClavinetSS | $0.99 | one-time |
| PipeOrganSS | $0.99 | one-time |
| ClavichordSS | $0.99 | one-time |
| HarpsichordSS | $0.99 | one-time |
| CelestaSS | $0.99 | one-time |
| ToyPianoSS | $0.99 | one-time |
| MelodicaSS | $0.99 | one-time |
| OrganSS | $0.99 | one-time |
| BandoneonSS | $1.99 | one-time |
| AccordionSS | $1.99 | one-time |
| JazzOrganSS | $1.99 | one-time |
| HarpSS | $1.99 | one-time |
| CarillonSS | $2.99 | one-time |
| ThereminSS | $2.99 | 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 Keyboard instrumentSS IA free?

Keyboard instrumentSS 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.

### Do Keyboard instrumentSS IA or Celesta Sim have ads?

Celesta Sim shows ads; Keyboard instrumentSS IA does not.

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

Keyboard instrumentSS IA ships an update monthly, and Celesta Sim every 4 months. Most recently, Keyboard instrumentSS IA was updated on October 10, 2026 and Celesta Sim on October 8, 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.*