# Little Arp Monster vs HeadStack

The clearest difference is review sentiment: HeadStack at 100% against Little Arp Monster's 67%. HeadStack also leads on rating (4.8 vs 4.6). Little Arp Monster's advantage is price ($5.99 vs $7.99). On ratings volume, update cadence, ads and in-app purchases there is nothing between them.

Little Arp Monster costs $5.99 and HeadStack $7.99 up front. Neither carries in-app purchases, so what you see is what you pay.

HeadStack holds the better App Store score, 4.8 against 4.6. Both are backed by a comparable volume of ratings — 7 and 5 respectively. Written reviews point the same way: 67% of Little Arp Monster's written reviews are positive against 100% of HeadStack's.

Little Arp Monster ships an update every 6 days, HeadStack every 9 days. Both last shipped on October 1, 2026.

## The numbers

| Metric | Little Arp Monster | HeadStack |
| --- | --- | --- |
| Price | **$5.99** | $7.99 |
| Rating | [4.6 (7 ratings)](https://appshunter.io/ios/app/little-arp-monster/id6778352056/reviews) | **[4.8 (5 ratings)](https://appshunter.io/ios/app/headstack/id6781611375/reviews)** |
| Number of ratings | **7** | 5 |
| Positive reviews | 66.7% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 days** | Every 9 days |
| Monetization | Paid | Paid |
| Size | 15 MB | 25 MB |
| Requires iOS | 15.0 | **14** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Snorkel Audio, Inh. Michael Kaisser](https://appshunter.io/developer/808807889) | [4Pockets.com](https://appshunter.io/developer/370131860) |

## What reviewers say

### Little Arp Monster

[App page](https://appshunter.io/ios/app/little-arp-monster/id6778352056)

This app is a MIDI arpeggiator that allows musicians to create complex, evolving musical patterns. It offers a step grid for sequencing notes and chords, an arranger for progressions, and a modulation lane for shaping sound parameters. Its randomizer and 'Spice' dial enable both classic and experimental arpeggiations.

**Highlights:** Step grid for sequencing notes and chords, Arranger for creating chord progressions, Modulation lane for shaping sound parameters, Musical randomizer and 'Spice' dial, Built-in audition synthesizer, Scene creation for variations

**Features:** Vision Pro support

**In-app purchases:** none


### HeadStack

[App page](https://appshunter.io/ios/app/headstack/id6781611375)

This app offers a virtual tape loop with 8 independently configurable playback heads for creating diverse echo effects. It captures the warmth of classic tape machines while offering modern flexibility for sound design, from vintage echoes to evolving ambient textures.

**Highlights:** Multi-head tape engine with 8 playback heads, Vintage tape character and imperfections, Independent control for each playback head, Rotating head wheel for dynamic effects, Granular harmony engine for pitch-shifted textures, Per-head modulation and creative feedback routing, Diffusion and smearing for atmospheric washes

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

**In-app purchases:** none


## Frequently asked questions

### Is Little Arp Monster free?

Little Arp Monster costs $5.99, with no in-app purchases.

### Is HeadStack free?

HeadStack costs $7.99, with no in-app purchases.

### Which has better reviews, Little Arp Monster or HeadStack?

HeadStack is rated higher. Little Arp Monster averages 4.6 out of 5 from 7 ratings, while HeadStack averages 4.8 from 5 ratings.

### Do Little Arp Monster or HeadStack have ads?

Neither Little Arp Monster nor HeadStack shows ads.

### Which is updated more often, Little Arp Monster or HeadStack?

Little Arp Monster ships an update every 6 days, and HeadStack every 9 days. Most recently, Little Arp Monster was updated on October 1, 2026 and HeadStack on October 1, 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.*