# AE975 vs HeadStack

The clearest difference is price: HeadStack at $7.99 against AE975's $19.99. HeadStack also leads on chart position (#188 vs unranked) and ratings volume (5 vs 1). AE975's advantage is rating (5.0 vs 4.8). On ads, in-app purchases, monetization model and device support there is nothing between them.

AE975 costs $19.99 and HeadStack $7.99 up front. Neither carries in-app purchases, so what you see is what you pay.

AE975 holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: HeadStack has 5 ratings behind it against 1, so its average is the more settled of the two.

## The numbers

| Metric | AE975 | HeadStack |
| --- | --- | --- |
| Price | $19.99 | **$7.99** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/ae975/id6778279880/reviews)** | [4.8 (5 ratings)](https://appshunter.io/ios/app/headstack/id6781611375/reviews) |
| Number of ratings | 1 | **5** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Every 9 days |
| Monetization | Paid | Paid |
| Best chart rank | — | **#188** |
| Size | 12 MB | 25 MB |
| Requires iOS | 17.0 | **14** |
| Devices | **iPhone, iPad, Mac, Vision Pro** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Christian Thompson](https://appshunter.io/developer/1511795684) | [4Pockets.com](https://appshunter.io/developer/370131860) |

## What reviewers say

### AE975

[App page](https://appshunter.io/ios/app/ae975/id6778279880)

Enhance audio tracks with presence, articulation, and density using a parallel processing path. This AUv3 audio effect offers subtle polish and detailed control for mixing and mastering.

**Highlights:** Parallel processing with sidechain, Sound-shaping controls (Focus, Enhance, Texture, Saturation, Density), AUv3 compatibility for DAWs, Standalone companion host app, 92 categorized factory presets, iCloud preset sync, MIDI Learn for controller mapping

**In-app purchases:** none


### HeadStack

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

**Currently charting:** #188 Top Paid · Music (US App Store)

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 AE975 free?

AE975 costs $19.99, with no in-app purchases.

### Is HeadStack free?

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

### Which has better reviews, AE975 or HeadStack?

AE975 is rated higher. AE975 averages 5.0 out of 5 from 1 ratings, while HeadStack averages 4.8 from 5 ratings.

### Do AE975 or HeadStack have ads?

Neither AE975 nor HeadStack 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.*