# Orbit Sampler vs RollTab

The clearest difference is in-app purchases: RollTab at none against Orbit Sampler's 1. RollTab also leads on update cadence (every 4 days vs every 2 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Orbit Sampler sells 1 one-off in-app purchase. RollTab asks for nothing beyond the download.

Orbit Sampler ships an update every 2 weeks, RollTab every 4 days. The most recent releases landed on October 2, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Orbit Sampler | RollTab |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 4 days** |
| Monetization | — | Free |
| Size | 10 MB | 185 MB |
| Requires iOS | 18.0 | 18.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Lee Bailey](https://appshunter.io/developer/6790973545) | [Simon Edwardsson](https://appshunter.io/developer/293670175) |

## What reviewers say

### Orbit Sampler

[App page](https://appshunter.io/ios/app/orbit-sampler/id6797107729)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Orbit | $24.99 | one-time |


### RollTab

[App page](https://appshunter.io/ios/app/rolltab/id6799679058)

This app transforms your device into an AI-powered piano partner. It listens to your musical phrases and generates real-time continuations using an advanced on-device AI model. You can control various aspects of the AI's output and export your creations as MIDI files.

**Highlights:** AI piano accompaniment, Real-time music generation, MIDI keyboard integration, Adjustable AI parameters, Live piano-roll view, MIDI file export

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

**In-app purchases:** none


## Frequently asked questions

### Is Orbit Sampler free?

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

### Is RollTab free?

RollTab is free to download, with no in-app purchases.

### Do Orbit Sampler or RollTab have ads?

Neither Orbit Sampler nor RollTab shows ads.

### Which is updated more often, Orbit Sampler or RollTab?

Orbit Sampler ships an update every 2 weeks, and RollTab every 4 days. Most recently, Orbit Sampler was updated on October 2, 2026 and RollTab on October 7, 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.*