# ChaosArp vs luapsel

The clearest difference is rating: ChaosArp at 4.9 against luapsel's 4.5. luapsel's advantage is update cadence (every 6 days vs every 2 weeks) and price ($0.99 vs $3.99). On ratings volume, ads, in-app purchases and monetization model there is nothing between them.

ChaosArp costs $3.99 and luapsel $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ChaosArp holds the better App Store score, 4.9 against 4.5. Both are backed by a comparable volume of ratings — 9 and 4 respectively.

ChaosArp ships an update every 2 weeks, luapsel every 6 days. Both last shipped on October 24, 2026.

## The numbers

| Metric | ChaosArp | luapsel |
| --- | --- | --- |
| Price | $3.99 | **$0.99** |
| Rating | **[4.9 (9 ratings)](https://appshunter.io/ios/app/chaosarp/id6497066359/reviews)** | [4.5 (4 ratings)](https://appshunter.io/ios/app/luapsel/id6569224196/reviews) |
| Number of ratings | **9** | 4 |
| Positive reviews | 83.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 6 days** |
| Monetization | Paid | Paid |
| Size | 17 MB | 101 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Achillefs Sourlas](https://appshunter.io/developer/6813431693) | [OSC Audio](https://appshunter.io/developer/1693533681) |

## What reviewers say

### ChaosArp

[App page](https://appshunter.io/ios/app/chaosarp/id6497066359)

This music app generates complex and dynamic MIDI patterns using advanced algorithms. It offers a unique rhythm event feature and variance control for extensive customization, allowing users to create evolving musical sequences.

**Highlights:** Arpeggiator and step sequencer modes, Rhythm event feature with 13 algorithms, Pitch and rhythm variance control, Scale quantizer, Randomizable velocity and duration, 4 performance buttons

**In-app purchases:** none


### luapsel

[App page](https://appshunter.io/ios/app/luapsel/id6569224196)

Create calming electric guitar ambience with reversed samples and built-in effects. Offers polyphonic playback, multiple articulations, and real-time sound shaping tools for unique musical textures.

**Highlights:** Polyphonic reversed guitar sounds, Round Robin sampling, Multiple articulations, Built-in delay, reverb, chorus, Real-time low-pass filter, ADSR Release control, Standalone samples available

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

**In-app purchases:** none


## Frequently asked questions

### Is ChaosArp free?

ChaosArp costs $3.99, with no in-app purchases.

### Is luapsel free?

luapsel costs $0.99, with no in-app purchases.

### Which has better reviews, ChaosArp or luapsel?

ChaosArp is rated higher. ChaosArp averages 4.9 out of 5 from 9 ratings, while luapsel averages 4.5 from 4 ratings.

### Do ChaosArp or luapsel have ads?

Neither ChaosArp nor luapsel shows ads.

### Which is updated more often, ChaosArp or luapsel?

ChaosArp ships an update every 2 weeks, and luapsel every 6 days. Most recently, ChaosArp was updated on October 24, 2026 and luapsel 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.*