# StepPolyArp vs auSCOPE X

The clearest difference is price: auSCOPE X at $5.99 against StepPolyArp's $19.99. auSCOPE X also leads on in-app purchases (none vs 2) and iOS requirement (9.0 vs 15.0). StepPolyArp's advantage is rating (4.8 vs 4.2) and review sentiment (87% vs 57%). On ads, monetization model and device support there is nothing between them.

StepPolyArp costs $19.99 and auSCOPE X $5.99 up front. StepPolyArp sells 2 one-off in-app purchases. auSCOPE X asks for nothing beyond the download.

StepPolyArp holds the better App Store score, 4.8 against 4.2. Both are backed by a comparable volume of ratings — 48 and 12 respectively. Written reviews point the same way: 87% of StepPolyArp's written reviews are positive against 57% of auSCOPE X's.

## The numbers

| Metric | StepPolyArp | auSCOPE X |
| --- | --- | --- |
| Price | $19.99 | **$5.99** |
| Rating | **[4.8 (48 ratings)](https://appshunter.io/ios/app/steppolyarp/id1361313588/reviews)** | [4.2 (12 ratings)](https://appshunter.io/ios/app/auscope-x/id1524867812/reviews) |
| Number of ratings | **48** | 12 |
| Positive reviews | **87.0% of reviews** | 57.1% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | — |
| Monetization | Paid | Paid |
| Size | 38 MB | 47 MB |
| Requires iOS | 15.0 | **9.0** |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Laurent Colson](https://appshunter.io/developer/381525765) | [auDSPr](https://appshunter.io/developer/1439844877) |

## 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 |


### auSCOPE X

[App page](https://appshunter.io/ios/app/auscope-x/id1524867812)

Visualize audio waveforms in real-time with this powerful oscilloscope app. Analyze stereo signals with high resolution, precise triggering, and intuitive controls. Works as a standalone app or AUv3 extension for various audio hosts.

**Highlights:** Two Channel Audio Oscilloscope, Pixel-accurate, frame-accurate, sample-accurate traces, Sophisticated Trigger System with 3 modes, Pausable Trigger System with zoom and pre-trigger viewing, AUv3 Audio Unit Extension or Stand-Alone App, Universal App for iPhone and iPad, VoiceOver screen reader support

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is StepPolyArp free?

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

### Is auSCOPE X free?

auSCOPE X costs $5.99, with no in-app purchases.

### Which has better reviews, StepPolyArp or auSCOPE X?

StepPolyArp is rated higher. StepPolyArp averages 4.8 out of 5 from 48 ratings, while auSCOPE X averages 4.2 from 12 ratings.

### Do StepPolyArp or auSCOPE X have ads?

Neither StepPolyArp nor auSCOPE X shows ads.

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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.*