# RetroSFX vs bitcrust

The clearest difference is update cadence: bitcrust at every 3 days against RetroSFX's every 5 weeks. bitcrust also leads on device support. RetroSFX's advantage is price ($0.99 vs $1.99) and iOS requirement (15.0 vs 17.0). On in-app purchases there is nothing between them.

RetroSFX costs $0.99 and bitcrust $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

RetroSFX ships an update every 5 weeks, bitcrust every 3 days. The most recent releases landed on October 25, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | RetroSFX | bitcrust |
| --- | --- | --- |
| Price | **$0.99** | $1.99 |
| Rating | — | **[4.5 (8 ratings)](https://appshunter.io/ios/app/bitcrust/id6763228916/reviews)** |
| Number of ratings | — | **8** |
| In-app purchases | No | No |
| Ads | — | No |
| Update frequency | Every 5 weeks | **Every 3 days** |
| Monetization | — | Paid |
| Size | 133 MB | 16 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | — | **iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Ali Taleb](https://appshunter.io/developer/1635037808) | [Michele Caserta](https://appshunter.io/developer/1885379520) |

## What reviewers say

### RetroSFX

[App page](https://appshunter.io/ios/app/retrosfx/id6761139769)

**In-app purchases:** none


### bitcrust

[App page](https://appshunter.io/ios/app/bitcrust/id6763228916)

This application offers a polyphonic synthesizer with a SID-style voice architecture, featuring multiple oscillators, ring modulation, and hard sync. It provides extensive modulation capabilities and a post-synthesis effects rack, extending its sonic range beyond traditional chip synths.

**Highlights:** 12-voice polyphony, 3 oscillators per voice with SID-style behavior, Extensive modulation matrix, 6-slot post-SID FX rack, 16-step sequencer and arpeggiator, AUv3 and Standalone support

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is RetroSFX free?

RetroSFX costs $0.99, with no in-app purchases.

### Is bitcrust free?

bitcrust costs $1.99, with no in-app purchases.

### Which is updated more often, RetroSFX or bitcrust?

RetroSFX ships an update every 5 weeks, and bitcrust every 3 days. Most recently, RetroSFX was updated on October 25, 2026 and bitcrust on October 31, 2026.

---

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