# FS Refraktor — Vibrocated Sploshing Flange

> Audio effect app for modulation, delay, and flanging with a sequencer. (iPhone/iPad app by FutureSonic Ltd.)

- Source: https://appshunter.io/ios/app/fs-refraktor/id1354422212 (this page in markdown: same URL + `.md`)
- Developer: [FutureSonic Ltd](https://appshunter.io/developer/545192578)
- Category: Music, Utilities, Music
- Price: $6.99
- Rating: 4.20/5 from 5 App Store ratings · 2 written reviews indexed
- Age rating: 4+
- Requires: iOS 12.0 · 13 MB
- Languages: English
- Released: 2018-03-09
- Data updated: 2026-06-10
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/fs-refraktor/id1354422212/reviews.md

## What is FS Refraktor?

FS Refraktor is an innovative twist on modulation effects, inspiring the exploration of new sonic territory. Sitting somewhere between a delay and a flanger, FS Refraktor offers endless possibilities, from rhythmic flanging to chaotic pitch modulation and unpredictable stuttering. 

The highly flexible sixteen step sequencer and LFO rhythmically warp sounds beyond recognition - standard drums beats become bleeping basslines and synths gain a mind of their own, generating melodies from thin air. 

The sequencer’s Slew control varies the speed at which the delay time changes - low settings produce sudden jarring variations while higher settings transition smoothly between delay times.

Bypass the sequencer, and FS Refraktor will add metallic overtones and strange resonances to your sounds, similar to a short, reflective reverb. 
Carve Revolutionary Sounds
The dedicated filter section makes it simple to sculpt your sound. Select from a range of versatile filter types: Low Pass, High Pass, Band Pass, Notch and FS Refraktor’s unique Carve mode.


Features:
 - Delay section with delay time, feedback, modulation and mix controls
 - A highly customizable sequencer for rhythmic modulation of the delay time
 - Slew control to vary the speed of delay time changes.
 - A versatile filter section with Low Pass, High Pass, Band Pass, Notch and Carve filter options
 - Stereo spread control for creating wide out of phase sounds.
 - Runs as both a standalone app and an AUv3 extension
 - Ability to save presets when run as an AUv3 extension

## Key features

- Delay section with modulation
- Customizable sequencer for rhythmic modulation
- Slew control for delay time changes
- Versatile filter section with Carve mode
- Stereo spread control
- Standalone app and AUv3 extension

## Recent user reviews (2 of 2)

All indexed reviews: https://appshunter.io/ios/app/fs-refraktor/id1354422212/reviews.md

### 5/5 — Just rediscovered… + question for dev?

*2023-02-24, version 1.1.1*

Bought all these effects from this dev when they first came out but as it sometimes happens, I lost/forgot about them until last night when I rediscovered the FS Refraktor plugin while playing around on Endlesss.  Man… super underrated and deserves more credit.  There’s nothing quite like it.

My question is a long shot but here goes… any chance of getting these apps on Max (intel)?  Specifically this one?  I’d pay again!  I want this on my Mac so bad!

Great work, hope to see more apps from you guys sometime soon

**Developer response:** Thanks! Happy to hear you're enjoying Refraktor. Apologies for the delay in my reply, I rarely check the reviews here as they are mostly nonsense or whinging. I'm also a fan on Endlesss and have made use of Refraktor on there. 

No promises on the Refraktor on Mac front but I'll consider it yeah, I've often thought I'd like to use it on Mac too. 2024 perhaps...

### 4/5 — Does what it claims to do

*2018-03-09, version 1.0.0*

But MAKE SURE YOUR HOST TRANSPORT IS RUNNING otherwise... you will not think it does what it claims to do. This won’t be a problem in a daw but will be in AUM or audio-bus if you’re feeding it with an app that has its own transport and you don’t ALSO turn on he host transport... it seems to work better in AUM btw but then, what doesn’t these days?

GOOD WORK!!! DEVELOPERS.

## Frequently asked questions about FS Refraktor

### What is FS Refraktor?

FS Refraktor is an audio effect application that offers a unique combination of delay and flanger capabilities. It allows users to explore new sonic territories with rhythmic sound warping and modulation.

### What kind of sounds can FS Refraktor create?

FS Refraktor can create a wide range of sounds, from rhythmic flanging and chaotic pitch modulation to unpredictable stuttering effects. It can transform standard drum beats into basslines and generate melodies from synths.

### Does FS Refraktor have a sequencer?

Yes, FS Refraktor features a highly flexible sixteen-step sequencer that rhythmically warps sounds. The Slew control on the sequencer allows for variations in how the delay time changes.

### What filter options are available in FS Refraktor?

FS Refraktor includes a dedicated filter section with versatile options such as Low Pass, High Pass, Band Pass, Notch, and its unique Carve mode for sculpting sound.

### Can FS Refraktor be used with other music apps?

Yes, FS Refraktor runs as both a standalone application and an AUv3 extension, allowing it to be integrated with other compatible music production software.

### How much does FS Refraktor cost?

FS Refraktor is a paid application priced at $6.99. It does not feature in-app purchases or advertisements.

### What devices is FS Refraktor compatible with?

FS Refraktor is compatible with iPhone, iPad, and iPod. It has an age rating of 4+.

### When was FS Refraktor last updated?

The latest version of FS Refraktor, 1.1.1, was released on September 17, 2021. The app was initially released on March 9, 2018.

## Version history (last 5 releases)

### 1.1.1 — 2021-09-17

Fix user preset saving and loading

### 1.1.0 — 2021-05-18

iOS 14 Support
Fix UI issues

### 1.0.2 — 2018-08-28

This app has been updated by Apple to display the Apple Watch app icon.

Fixed occasional crash issues when used as AUv3 plugin
Optimised processing algorithm
Fixed UI bugs

### 1.0.1 — 2018-03-13

- Added promo video
- Fix issues related to iPad Air 1

### 1.0.0 — 2018-03-08

No release notes.

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## More apps by FutureSonic Ltd

- [FS Reverser Delay](https://appshunter.io/ios/app/fs-reverser-delay/id1299716499)
- [FS FreezeVerb](https://appshunter.io/ios/app/fs-freezeverb/id1330949875)

All apps by FutureSonic Ltd: https://appshunter.io/developer/545192578

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-10.*