# Ruismaker vs StepPolyArp

The clearest difference is price: Ruismaker at $4.99 against StepPolyArp's $19.99. Ruismaker also leads on in-app purchases (none vs 2) and iOS requirement (11.0 vs 15.0). StepPolyArp's advantage is review sentiment (87% vs 74%). On rating, ratings volume, update cadence and ads there is nothing between them.

Ruismaker costs $4.99 and StepPolyArp $19.99 up front. StepPolyArp sells 2 one-off in-app purchases. Ruismaker asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.8 for Ruismaker against 4.8 for StepPolyArp. Both are backed by a comparable volume of ratings — 58 and 48 respectively. Written reviews are what separate them: 74% of Ruismaker's written reviews are positive against 87% of StepPolyArp's.

Ruismaker ships an update every 5 weeks, StepPolyArp every 2 months. The most recent releases landed on October 24, 2026 and October 23, 2026 respectively.

## The numbers

| Metric | Ruismaker | StepPolyArp |
| --- | --- | --- |
| Price | **$4.99** | $19.99 |
| Rating | [4.8 (58 ratings)](https://appshunter.io/ios/app/ruismaker/id1122156899/reviews) | **[4.8 (48 ratings)](https://appshunter.io/ios/app/steppolyarp/id1361313588/reviews)** |
| Number of ratings | **58** | 48 |
| Positive reviews | 74.1% of reviews | **87.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 2 months |
| Monetization | Paid | Paid |
| Size | 9 MB | 38 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Bram Bos](https://appshunter.io/developer/325340444) | [Laurent Colson](https://appshunter.io/developer/381525765) |

## What reviewers say

### Ruismaker

[App page](https://appshunter.io/ios/app/ruismaker/id1122156899)

This app is an analog drumsynth that creates sounds using authentic synthesis algorithms, not samples. It features a creative Euclidean sequencer for pattern programming and integrates seamlessly with AUv3 hosts like Garageband. It offers customizable sound models and MIDI control for flexible music production.

**Highlights:** Analog and FM synthesis sound modeling, Sample-free sound generation, Euclidean sequencer, AUv3 compatibility, MIDI CC control, WAV and MIDI export, Ableton Link sync

**Features:** Vision Pro support

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is Ruismaker free?

Ruismaker costs $4.99, with no in-app purchases.

### Is StepPolyArp free?

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

### Which has better reviews, Ruismaker or StepPolyArp?

StepPolyArp is rated higher. Ruismaker averages 4.8 out of 5 from 58 ratings, while StepPolyArp averages 4.8 from 48 ratings.

### Do Ruismaker or StepPolyArp have ads?

Neither Ruismaker nor StepPolyArp shows ads.

### Which is updated more often, Ruismaker or StepPolyArp?

Ruismaker ships an update every 5 weeks, and StepPolyArp every 2 months. Most recently, Ruismaker was updated on October 24, 2026 and StepPolyArp on October 23, 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.*