# StageBoost vs RSF2

The clearest difference is price: StageBoost at Free against RSF2's $3.99. StageBoost also leads on update cadence (every 2 days vs weekly) and iOS requirement (15.1 vs 17.0). RSF2's advantage is in-app purchases (none vs 1) and ads (none vs shown). On device support there is nothing between them.

StageBoost is free to download; RSF2 costs $3.99 up front. StageBoost sells 1 in-app purchase, starting at $1.99 per month. RSF2 asks for nothing beyond the download.

StageBoost ships an update every 2 days, RSF2 weekly. The most recent releases landed on October 1, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | StageBoost | RSF2 |
| --- | --- | --- |
| Price | **Free** | $3.99 |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/rsf2-sf2-manager-auv3/id6775565792/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 2 days** | Weekly |
| Monetization | — | Paid |
| Size | 147 MB | 2 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [STAGEBOOST SOLUCOES E SERVICOS LTDA](https://appshunter.io/developer/1803834711) | [Rubens Felicio](https://appshunter.io/developer/6775565794) |

## What reviewers say

### StageBoost

[App page](https://appshunter.io/ios/app/stageboost/id6743656961)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Seja Pro | $1.99 | per month |


### 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


## Frequently asked questions

### Is StageBoost free?

StageBoost is free to download, with in-app purchases available.

### Is RSF2 free?

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

### Do StageBoost or RSF2 have ads?

StageBoost shows ads; RSF2 does not.

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

StageBoost ships an update every 2 days, and RSF2 weekly. Most recently, StageBoost was updated on October 1, 2026 and RSF2 on October 25, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*