# StepPolyArp vs BLEASS Arpeggiator

The clearest difference is in-app purchases: BLEASS Arpeggiator at none against StepPolyArp's 2. BLEASS Arpeggiator also leads on price ($14.99 vs $19.99). StepPolyArp's advantage is update cadence (every 2 months vs every 6 months) and review sentiment (87% vs 75%). On rating, ratings volume, ads and monetization model there is nothing between them.

StepPolyArp costs $19.99 and BLEASS Arpeggiator $14.99 up front. StepPolyArp sells 2 one-off in-app purchases. BLEASS Arpeggiator asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.8 for StepPolyArp against 4.8 for BLEASS Arpeggiator. Both are backed by a comparable volume of ratings — 48 and 54 respectively. Written reviews are what separate them: 87% of StepPolyArp's written reviews are positive against 75% of BLEASS Arpeggiator's.

StepPolyArp ships an update every 2 months, BLEASS Arpeggiator every 6 months. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | StepPolyArp | BLEASS Arpeggiator |
| --- | --- | --- |
| Price | $19.99 | **$14.99** |
| Rating | [4.8 (48 ratings)](https://appshunter.io/ios/app/steppolyarp/id1361313588/reviews) | **[4.8 (54 ratings)](https://appshunter.io/ios/app/bleass-arpeggiator/id6464041408/reviews)** |
| Number of ratings | 48 | **54** |
| Positive reviews | **87.0% of reviews** | 75.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 6 months |
| Monetization | Paid | Paid |
| Size | 38 MB | 20 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) | [BLEASS](https://appshunter.io/developer/1220444177) |

## 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 |


### BLEASS Arpeggiator

[App page](https://appshunter.io/ios/app/bleass-arpeggiator/id6464041408)

This app offers advanced arpeggiation capabilities for musicians, going beyond traditional patterns with polyrhythms and polyphony. Its intuitive interface encourages on-the-fly experimentation, enhanced by performance controllers, LFOs, and a motion sequencer. It also includes a built-in FM synth for sound generation or can be used with other instruments.

**Highlights:** Advanced arpeggiation patterns, Polyphony and polyrhythms, Hands-on creative interface, XY pads and LFOs, Motion Sequencer, Built-in FM synth, MIDI output for external synths

**In-app purchases:** none


## Frequently asked questions

### Is StepPolyArp free?

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

### Is BLEASS Arpeggiator free?

BLEASS Arpeggiator costs $14.99, with no in-app purchases.

### Which has better reviews, StepPolyArp or BLEASS Arpeggiator?

BLEASS Arpeggiator is rated higher. StepPolyArp averages 4.8 out of 5 from 48 ratings, while BLEASS Arpeggiator averages 4.8 from 54 ratings.

### Do StepPolyArp or BLEASS Arpeggiator have ads?

Neither StepPolyArp nor BLEASS Arpeggiator shows ads.

### Which is updated more often, StepPolyArp or BLEASS Arpeggiator?

StepPolyArp ships an update every 2 months, and BLEASS Arpeggiator every 6 months. Most recently, StepPolyArp was updated on November 2, 2026 and BLEASS Arpeggiator on November 3, 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.*