# StepPolyArp vs MIDI Strummer AUv3 Plugin

The clearest difference is price: MIDI Strummer AUv3 Plugin at $6.99 against StepPolyArp's $19.99. MIDI Strummer AUv3 Plugin also leads on in-app purchases (none vs 2). StepPolyArp's advantage is rating (4.8 vs 4.3) and review sentiment (87% vs 75%). On ratings volume, update cadence, ads and monetization model there is nothing between them.

StepPolyArp costs $19.99 and MIDI Strummer AUv3 Plugin $6.99 up front. StepPolyArp sells 2 one-off in-app purchases. MIDI Strummer AUv3 Plugin asks for nothing beyond the download.

StepPolyArp holds the better App Store score, 4.8 against 4.3. Both are backed by a comparable volume of ratings — 48 and 51 respectively. Written reviews point the same way: 87% of StepPolyArp's written reviews are positive against 75% of MIDI Strummer AUv3 Plugin's.

StepPolyArp ships an update every 2 months, MIDI Strummer AUv3 Plugin every 6 weeks. The most recent releases landed on September 26, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | StepPolyArp | MIDI Strummer AUv3 Plugin |
| --- | --- | --- |
| Price | $19.99 | **$6.99** |
| Rating | **[4.8 (48 ratings)](https://appshunter.io/ios/app/steppolyarp/id1361313588/reviews)** | [4.3 (51 ratings)](https://appshunter.io/ios/app/midi-strummer-auv3-plugin/id1532229404/reviews) |
| Number of ratings | 48 | **51** |
| Positive reviews | **86.7% of reviews** | 75.4% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 6 weeks** |
| Monetization | Paid | Paid |
| Size | 38 MB | 386 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Laurent Colson](https://appshunter.io/developer/381525765) | [4Pockets.com](https://appshunter.io/developer/370131860) |

## What reviewers say

### StepPolyArp

[App page](https://appshunter.io/ios/app/steppolyarp/id1361313588)

This app functions as a real-time polyphonic and polyrhythmic MIDI step arpeggiator and sequencer. It can generate melodic patterns from input or operate as a standalone sequencer. Save and sync unlimited presets with iCloud, featuring extensive customization for patterns and step controllers.

**Highlights:** Standalone app and AUv3 MIDI effect plugin, Arpeggiator and step sequencer modes, Programmable step matrix with transposition lines, Polyrhythmic step controllers, Internal sound bank, Ableton Link and MIDI sync support, Unlimited preset saving with iCloud sync

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Dance Horizons | $4.99 | one-time |
| Analog Sequence | $4.99 | one-time |


### MIDI Strummer AUv3 Plugin

[App page](https://appshunter.io/ios/app/midi-strummer-auv3-plugin/id1532229404)

This app generates MIDI note data to simulate guitar strumming and picking. It includes a soundfont player, definable chord pads, and a pattern editor for creating custom strumming and picking sequences. You can also chain patterns into songs and apply various audio effects.

**Highlights:** Simulate guitar strumming and picking, Generate MIDI note data, Import and use soundfonts (.SF2, .DLS), 16 definable chord pads, Pattern editor for creating sequences, Song mode to chain patterns, 6 and 12 string emulation, Built-in audio effects

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 👍 Great app for guitar tracks
- 💡 Versatile arpeggiator
- 🎶 Excellent sound quality
- 🎹 Capable soundfont player
- 🎵 Intuitive interface

**What reviewers complain about**

- 🐛 Frequent crashes
- ⚠️ Suspicious support website
- 📉 Limited control over swing/triplet tempo
- ❓ Difficult to get MIDI out
- 🖱️ Clunky UI

**Reported bugs**

- App support is not opening
- App support website is gone/suspicious
- App keeps crashing when hosted in AUM
- Plugin corrupts entire track and makes project impossible to open
- Crashes constantly when used in AUM

**Requested features**

- Include pattern lengths of 3, 5, 7
- Piano to guitar chords and manual strumming
- Offset notes in pattern editor for swing/triplet tempos
- Add swing/humanize to patterns
- Functionality for capo or real-time key change with MIDI


## Frequently asked questions

### Is StepPolyArp free?

StepPolyArp costs $19.99, and also offers in-app purchases.

### Is MIDI Strummer AUv3 Plugin free?

MIDI Strummer AUv3 Plugin costs $6.99, with no in-app purchases.

### Which has better reviews, StepPolyArp or MIDI Strummer AUv3 Plugin?

StepPolyArp is rated higher. StepPolyArp averages 4.8 out of 5 from 48 ratings, while MIDI Strummer AUv3 Plugin averages 4.3 from 51 ratings.

### Do StepPolyArp or MIDI Strummer AUv3 Plugin have ads?

Neither StepPolyArp nor MIDI Strummer AUv3 Plugin shows ads.

### Which is updated more often, StepPolyArp or MIDI Strummer AUv3 Plugin?

StepPolyArp ships an update every 2 months, and MIDI Strummer AUv3 Plugin every 6 weeks. Most recently, StepPolyArp was updated on September 26, 2026 and MIDI Strummer AUv3 Plugin on September 25, 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.*