# Midiflow Motion (Audiobus) vs Midi Poly Grid

The clearest difference is review sentiment: Midi Poly Grid at 100% against Midiflow Motion (Audiobus)'s 40%. Midi Poly Grid also leads on rating (5.0 vs 2.0) and update cadence (every 11 days vs every 11 months). Midiflow Motion (Audiobus)'s advantage is price ($1.99 vs $3.99) and iOS requirement (10.2 vs 15.0). On ads, in-app purchases, monetization model and device support there is nothing between them.

Midiflow Motion (Audiobus) costs $1.99 and Midi Poly Grid $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Midi Poly Grid holds the better App Store score, 5.0 against 2.0. That said, the two scores are not equally well evidenced: Midi Poly Grid has 8 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 40% of Midiflow Motion (Audiobus)'s written reviews are positive against 100% of Midi Poly Grid's.

Midiflow Motion (Audiobus) ships an update every 11 months, Midi Poly Grid every 11 days. Both last shipped on October 24, 2026.

## The numbers

| Metric | Midiflow Motion (Audiobus) | Midi Poly Grid |
| --- | --- | --- |
| Price | **$1.99** | $3.99 |
| Rating | [2.0 (1 ratings)](https://appshunter.io/ios/app/midiflow-motion-audiobus/id1107254489/reviews) | **[5.0 (8 ratings)](https://appshunter.io/ios/app/midi-poly-grid/id1633882803/reviews)** |
| Number of ratings | 1 | **8** |
| Positive reviews | 40.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 11 months | **Every 11 days** |
| Monetization | Paid | Paid |
| Size | 5 MB | 24 MB |
| Requires iOS | **10.2** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Johannes Doerr](https://appshunter.io/developer/622204117) | [Andreas Mueller](https://appshunter.io/developer/1633882805) |

## What reviewers say

### Midiflow Motion (Audiobus)

[App page](https://appshunter.io/ios/app/midiflow-motion-audiobus/id1107254489)

Control effect parameters in other music apps by moving your device. Fine-tune MIDI commands like volume or modulation to your desired motion range for expressive control. Supports multiple parameters and apps simultaneously through Audiobus 3.

**Highlights:** Control effect parameters with device motion, Use device rotation (X/Y axis), Adjust motion and output value ranges, Send any MIDI command (pitch-bend, CC, custom), Control multiple parameters/apps simultaneously, Integrates with Audiobus 3

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

**In-app purchases:** none


### Midi Poly Grid

[App page](https://appshunter.io/ios/app/midi-poly-grid/id1633882803)

This app functions solely as a MIDI controller, requiring a host application or DAW to produce sound. It offers intuitive pad controls for melodies and finger drumming, with advanced modulation options like MPE and polyphonic aftertouch. Connect virtually or via USB/Bluetooth to other devices and DAWs.

**Highlights:** Size-adjustable grid of pads, MPE and polyphonic aftertouch modulation, Custom grid creation, Virtual MIDI connection, Preset saving, Multiple layouts and colors

**In-app purchases:** none


## Frequently asked questions

### Is Midiflow Motion (Audiobus) free?

Midiflow Motion (Audiobus) costs $1.99, with no in-app purchases.

### Is Midi Poly Grid free?

Midi Poly Grid costs $3.99, with no in-app purchases.

### Which has better reviews, Midiflow Motion (Audiobus) or Midi Poly Grid?

Midi Poly Grid is rated higher. Midiflow Motion (Audiobus) averages 2.0 out of 5 from 1 ratings, while Midi Poly Grid averages 5.0 from 8 ratings.

### Do Midiflow Motion (Audiobus) or Midi Poly Grid have ads?

Neither Midiflow Motion (Audiobus) nor Midi Poly Grid shows ads.

### Which is updated more often, Midiflow Motion (Audiobus) or Midi Poly Grid?

Midiflow Motion (Audiobus) ships an update every 11 months, and Midi Poly Grid every 11 days. Most recently, Midiflow Motion (Audiobus) was updated on October 24, 2026 and Midi Poly Grid 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.*