# RSF2 vs HeadStack

The clearest difference is price: RSF2 at $3.99 against HeadStack's $12.99. HeadStack's advantage is chart position (#185 vs unranked) and ratings volume (7 vs 1). On rating, review sentiment, update cadence and ads there is nothing between them.

RSF2 costs $3.99 and HeadStack $12.99 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 RSF2 against 4.9 for HeadStack. That said, the two scores are not equally well evidenced: HeadStack has 7 ratings behind it against 1, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.

RSF2 ships an update weekly, HeadStack every 9 days. Both last shipped on October 25, 2026.

## The numbers

| Metric | RSF2 | HeadStack |
| --- | --- | --- |
| Price | **$3.99** | $12.99 |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/rsf2-sf2-manager-auv3/id6775565792/reviews)** | [4.9 (7 ratings)](https://appshunter.io/ios/app/headstack/id6781611375/reviews) |
| Number of ratings | 1 | **7** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Weekly** | Every 9 days |
| Monetization | Paid | Paid |
| Best chart rank | — | **#185** |
| Size | 2 MB | 25 MB |
| Requires iOS | 17.0 | **14** |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Rubens Felicio](https://appshunter.io/developer/6775565794) | [4Pockets.com](https://appshunter.io/developer/370131860) |

## What reviewers say

### RSF2

[App page](https://appshunter.io/ios/app/rsf2-sf2-manager-auv3/id6775565792)

Organize and manage your SoundFont 2 (.sf2) collection. Easily combine presets from multiple SoundFonts into new banks or split large files into individual instruments. All processing happens directly on your device for maximum privacy and security.

**Highlights:** Build themed banks in one tap, Reorder presets by drag and drop, Split giant SF2 files into parts, 100% on-device processing, Universal app for iPhone, iPad, and Mac, Works with popular samplers and DAWs

**Features:** Vision Pro support

**In-app purchases:** none


### HeadStack

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

**Currently charting:** #185 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 RSF2 free?

RSF2 costs $3.99, with no in-app purchases.

### Is HeadStack free?

HeadStack costs $12.99, with no in-app purchases.

### Which has better reviews, RSF2 or HeadStack?

RSF2 is rated higher. RSF2 averages 5.0 out of 5 from 1 ratings, while HeadStack averages 4.9 from 7 ratings.

### Do RSF2 or HeadStack have ads?

Neither RSF2 nor HeadStack shows ads.

### Which is updated more often, RSF2 or HeadStack?

RSF2 ships an update weekly, and HeadStack every 9 days. Most recently, RSF2 was updated on October 25, 2026 and HeadStack on October 25, 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.*