# samplerSequencer vs Midiflow Keyboard (Audiobus)

The clearest difference is device support: Midiflow Keyboard (Audiobus) at 3 against samplerSequencer's 1. Midiflow Keyboard (Audiobus) also leads on iOS requirement (10.2 vs 18.0). samplerSequencer's advantage is price ($1.99 vs $2.99). On update cadence, ads and in-app purchases there is nothing between them.

samplerSequencer costs $1.99 and Midiflow Keyboard (Audiobus) $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

samplerSequencer ships an update every 11 months, Midiflow Keyboard (Audiobus) every 9 months. The most recent releases landed on September 12, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | samplerSequencer | Midiflow Keyboard (Audiobus) |
| --- | --- | --- |
| Price | **$1.99** | $2.99 |
| Rating | — | **[5.0 (6 ratings)](https://appshunter.io/ios/app/midiflow-keyboard-audiobus/id1092870508/reviews)** |
| Number of ratings | — | **6** |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 11 months | **Every 9 months** |
| Monetization | — | Paid |
| Size | 3 MB | 5 MB |
| Requires iOS | 18.0 | **10.2** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Gianluca Natalini](https://appshunter.io/developer/348380792) | [Johannes Doerr](https://appshunter.io/developer/622204117) |

## What reviewers say

### samplerSequencer

[App page](https://appshunter.io/ios/app/samplersequencer/id428801067)

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

**In-app purchases:** none


### Midiflow Keyboard (Audiobus)

[App page](https://appshunter.io/ios/app/midiflow-keyboard-audiobus/id1092870508)

This music app provides a versatile keyboard interface for controlling multiple synth applications simultaneously. It offers various layouts, including piano, scales, and chords, with customizable controls for pitch, modulation, and note velocity. Designed to integrate seamlessly with Audiobus 3, it enhances mobile music production.

**Highlights:** Piano, scale, and chord layouts, Multiple independent keyboard strips, Adjustable key range and octaves, Pitch-bend and modulation wheels, Hold mode with unisono option, Velocity control via touch or accelerometer, Split View/Slide Over support

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

**In-app purchases:** none


## Frequently asked questions

### Is samplerSequencer free?

samplerSequencer costs $1.99, with no in-app purchases.

### Is Midiflow Keyboard (Audiobus) free?

Midiflow Keyboard (Audiobus) costs $2.99, with no in-app purchases.

### Do samplerSequencer or Midiflow Keyboard (Audiobus) have ads?

Neither samplerSequencer nor Midiflow Keyboard (Audiobus) shows ads.

### Which is updated more often, samplerSequencer or Midiflow Keyboard (Audiobus)?

samplerSequencer ships an update every 11 months, and Midiflow Keyboard (Audiobus) every 9 months. Most recently, samplerSequencer was updated on September 12, 2026 and Midiflow Keyboard (Audiobus) on September 10, 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.*