# Anima Synthesizer vs HeadStack

The clearest difference is ratings volume: HeadStack at 7 against Anima Synthesizer's 2. HeadStack also leads on iOS requirement (14 vs 17.0). On price, rating, update cadence and ads there is nothing between them.

Anima Synthesizer costs $7.99 and HeadStack $7.99 up front. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 5.0 for Anima Synthesizer against 4.9 for HeadStack. Both are backed by a comparable volume of ratings — 2 and 7 respectively.

Anima Synthesizer ships an update weekly, HeadStack every 9 days. The most recent releases landed on October 11, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | Anima Synthesizer | HeadStack |
| --- | --- | --- |
| Price | $7.99 | $7.99 |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/anima-synthesizer/id6780281462/reviews)** | [4.9 (7 ratings)](https://appshunter.io/ios/app/headstack/id6781611375/reviews) |
| Number of ratings | 2 | **7** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Weekly** | Every 9 days |
| Monetization | Paid | Paid |
| Size | 4 MB | 25 MB |
| Requires iOS | 17.0 | **14** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Victorien Genna](https://appshunter.io/developer/6775279378) | [4Pockets.com](https://appshunter.io/developer/370131860) |

## What reviewers say

### Anima Synthesizer

[App page](https://appshunter.io/ios/app/anima-synthesizer/id6780281462)

This app is a physical modeling instrument that simulates how sound is produced in the real world. It offers intuitive controls for shaping sound through energy, object resonance, and room acoustics. It supports MPE controllers and offers a unique microtonal playing experience.

**Highlights:** Physical modeling sound engine, Intuitive ENERGY, OBJECT, ROOM controls, Modal resonator for object shaping, Morphable room acoustics simulation, MPE support with zero setup, Standalone and AUv3 instrument, Ribbon and piano keyboard options

**Features:** macOS Compatibility

**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 Anima Synthesizer free?

Anima Synthesizer costs $7.99, with no in-app purchases.

### Is HeadStack free?

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

### Which has better reviews, Anima Synthesizer or HeadStack?

Anima Synthesizer is rated higher. Anima Synthesizer averages 5.0 out of 5 from 2 ratings, while HeadStack averages 4.9 from 7 ratings.

### Do Anima Synthesizer or HeadStack have ads?

Neither Anima Synthesizer nor HeadStack shows ads.

### Which is updated more often, Anima Synthesizer or HeadStack?

Anima Synthesizer ships an update weekly, and HeadStack every 9 days. Most recently, Anima Synthesizer was updated on October 11, 2026 and HeadStack on October 20, 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.*