# Swoopster - Fuzz Flanger FX > Stereo fuzz, flanger, and vibrato effect processor for iOS with Audiobus and IAA integration. (iPhone/iPad app by Holderness Media.) - Source: https://appshunter.io/ios/app/swoopster-fuzz-flanger-fx/id736436952 (this page in markdown: same URL + `.md`) - Developer: [Holderness Media](https://appshunter.io/developer/431020308) - Category: Music, Entertainment - Price: $4.99 - Rating: 3.00/5 from 2 App Store ratings · 22 written reviews indexed - Age rating: 4+ - Requires: iOS 12.4 · 3 MB - Languages: American English - Released: 2013-12-03 - Data updated: 2026-08-01 - Monetization: paid - User reviews in markdown: https://appshunter.io/ios/app/swoopster-fuzz-flanger-fx/id736436952/reviews.md ## What is Swoopster? Swoopster is a highly playable Flanger, Fuzz, and Vibrato effect designed for Audiobus 3 and Inter-app audio. Process synths, drum machines and hundreds of other apps by connecting through Audiobus. Use Swoopster as an effect inside Garageband, Auria, Cubasis, and AudioShare using Audiobus or Inter-app audio. Swoopster supports Core MIDI via the Camera Connection kit, USB MIDI interfaces, Virtual MIDI and WiFi connections. The MIDI Learn function lets you easily assign your MIDI controller's knobs and sliders to control Swoopster's effect parameters. Here's what users are saying: "Great Playground - Swoopster really utilizes the iPad's entire surface, to put awesome sound effects manipulation at your fingertips. If that's not enough, just tweak the sound effects, and pick up your guitar. With Audiobus and IAA intergration the possibilities are endless. Don't second guess, just get it." - Mgmg4871 (AppStore Review) "SWOOP, there it is! - Sometimes I just send a loop into this app and just play for twenty minutes, wondering where the time has gone. Flange a rama man!" - dmonterroso (AppStore review) Swoopster features two distinct modes: PERFORM and TWEAK. • PERFORM mode is focused around four XY touch pads. Touch to control flanger speed, manual, feedback and fuzz amount independently for left and right channels. • TWEAK mode features large expressive sliders and additional effect parameters, allowing you to fine tune your sound. The center panel of Swoopster's interface is part of the instrument and meant to be played in real-time, including the scrollable preset list. Tap a preset to instantly load it's settings, play different presets in rhythmic patterns, or re-trigger the current preset to restart the sweep of the Flanger. The MUTE and BYPASS buttons function as momentary switches for DJ mixer style control. In addition to Audiobus and Inter-app Audio support, Swoopster can also process external instruments such as guitar, voice and synths by connecting a microphone or professional audio interface such as the Apogee Jam, ONE, or any iOS compatible USB audio interface. Guitarists can use our effects live by connecting the output of their audio interface to an amp. Watch demos and tutorials at www.youtube.com/holdernessmedia. For more info visit https://holdernessmedia.com Check out our entire FX series including Caramel, Crystalline, Echo Pad and Stereo Designer! COMPATIBILITY: • requires iOS 12.4 or later • iPad Mini/iPad 2 or newer • Audiobus 2 compatible (Effect, Input, state saviing) • Inter-App audio compatible (effect node) • Compatible with DAW apps such as Auria, Cubasis, and Garageband • compatible with USB audio interfaces • Core MIDI compatible • Receive MIDI over Bluetooth LE (requires iOS 8)  Features: • stereo Fuzz, Flange and Vibrato effect processor • versatile flanger capable of sounds ranging from smooth phasey flange to wildly distorted, pitch shifted madness • flanger with positive and negative feedback • independent left and right channel effects engines can be controlled separately or linked • Audiobus 3 compatible (Effect, state saving) • Inter-App Audio compatible (effect node) • Core MIDI compatible, works with any MIDI controller via MIDI Learn • Select presets via MIDI program change • true stereo input and effects processing • several output style options including normal stereo, wide stereo, and sum to mono Swoopster works with just about any professional iOS compatible USB audio interfaces. Here is a list of interfaces that have been tested and verified to be compatible: • Apogee Jam • Apogee Mic • Apogee ONE for iPad/Mac • Apogee DUET for iPad/Mac • Apogee QUARTET for iPad/Mac • iRig • iRig HD • iRig iMic • Focusrite Scarlett series (*requires USB hub) • Alesis io2 • Alesis IO Dock • Behringer UCA202 • many more ## Key features - Stereo Fuzz, Flange, and Vibrato effect processor - Audiobus 3 and Inter-App Audio integration - PERFORM mode with XY touch pads - TWEAK mode with expressive sliders - MIDI Learn for controller assignment - Real-time preset manipulation ## Recent user reviews (10 of 22) All indexed reviews: https://appshunter.io/ios/app/swoopster-fuzz-flanger-fx/id736436952/reviews.md ### 5/5 — Rating system broken? *2020-03-22* This app is delicious and elegant. It's got a flange for good chorus effects, for psychedelic swirling, faux vocoding or metallic resonation. Also some good fuzz to amp it up a bit. Money very well spent. ### 2/5 — Bof... *2016-11-02* Un peu mieux que Caramel, mais quand même... ### 5/5 — Klar und gut *2016-09-30* Klare Bedienungoberfläche, schlankes Design und gut klingend. Vom Einsatzgebiet sicherlich etwas spezieller aber nicht zuletzt seit Audiobus 2 und der Möglichkeit Effektketten zu erstellen eine tolle Sache. ### 5/5 — Flangetastic *2016-05-20* As with all the Holderness apps, Swoopster gets regular updates and was already solid. I've gotten my money's worth and then some with EchoPad, StereoDesigner, Caramel, Crystalline, and this app. ...'nuff said. ### 5/5 — Whoa dude *2015-01-27* Trippy ### 2/5 — Not my cup of tea *2014-11-20* I find this developer's Crystalline, Echo Pad and Stereo Designer apps quite interesting and plan on using them but this one, along with Caramel I don't see myself ever using. Others, however, may like these dirty, distorted, grungy effects. I bought the bundle that had them all but have since deleted Swoopster and Caramel. ### 5/5 — Lovely *2014-11-18* Really nice set of effects here. Powerful And easy to use perfect with audiobus ( nice to see someone's on the ball with iOS 8 updates ) ### 5/5 — Excellent, musical app, fuzz effect *2014-11-18* IAA and Audiobus compatible effect with intuitive controls, recommend all their music apps. ### 5/5 — Swoopster is great! (actually, all HM's apps are) *2014-11-17* I hate Cubasis' onboard FX—and Holderness Media's FX bundle does a lot of heavy lifting for me. I *have* Turnado & Effectrix, among many others. I *use* Holderness' apps. I don't know how much higher praise I could give than that :) ### 5/5 — Great app, fantastic UI *2014-10-24* This app is another brilliant app from Holderness Media (makers of Echo Pad). Small size, but huge on sound. The presets alone are great, but playing with the X/Y pads or going into "Tweak" mode gives you so much more. Easy recommend on this app. ## Frequently asked questions about Swoopster ### What is Swoopster? Swoopster is a music app that provides stereo fuzz, flanger, and vibrato effects. It's designed for use with Audiobus 3 and Inter-App Audio, allowing you to process various audio sources on your iPad. ### What devices is Swoopster compatible with? Swoopster requires iOS 12.4 or later and is compatible with iPad Mini/iPad 2 or newer. It also supports Audiobus 2, Inter-App Audio, and various DAW apps like Auria, Cubasis, and Garageband. ### Can I use Swoopster with external instruments like a guitar? Yes, Swoopster can process external instruments such as guitar or voice by connecting a microphone or compatible USB audio interface. Guitarists can use the effects live by connecting the output of their audio interface to an amp. ### Does Swoopster support MIDI controllers? Yes, Swoopster supports Core MIDI and features a MIDI Learn function. This allows you to easily assign your MIDI controller's knobs and sliders to control the app's effect parameters. ### What are the different modes in Swoopster? Swoopster features two modes: PERFORM mode, which uses four XY touch pads for real-time control of effect parameters, and TWEAK mode, which offers expressive sliders and additional parameters for fine-tuning your sound. ### How often is Swoopster updated? Swoopster was last updated on May 2, 2024, with version 1.3.7. This indicates a recent update, suggesting ongoing support and development from the developer. ### What is the price of Swoopster? Swoopster is a paid application, available for $4.99. There are no in-app purchases mentioned, and the app is not ad-supported. ### What is the age rating for Swoopster? Swoopster has an age rating of 4+, making it suitable for a wide range of users. This rating is based on general content appropriateness. ## Version history (last 5 releases) ### 1.3.7 — 2024-05-02 • Add Bluetooth audio support. • Various bugfixes and improvements. ### 1.3.6 — 2024-04-29 • Various bugfixes and improvements. ### 1.3.5 — 2024-04-28 • Various bugfixes and improvements. ### 1.3.4 — 2017-03-10 • Audiobus 3 ready • Added option to save state on quit and recall when app is next launched (this option can be enabled in the settings page) • minor bugfixes ### 1.3.3 — 2016-05-20 • update Audiobus SDK • minor bugfixes ## More apps by Holderness Media - [Echo Pad - Delay FX Processor](https://appshunter.io/ios/app/echo-pad-delay-fx-processor/id573511415) - [Stereo Designer - StereoShaper](https://appshunter.io/ios/app/stereo-designer-stereoshaper/id791454067) - [Crystalline - Shimmer Echo FX](https://appshunter.io/ios/app/crystalline-shimmer-echo-fx/id859121707) - [Caramel - Crusher FX](https://appshunter.io/ios/app/caramel-crusher-fx/id883581594) - [Stereo Designer Mini - AudioFX](https://appshunter.io/ios/app/stereo-designer-mini-audiofx/id949810044) All apps by Holderness Media: https://appshunter.io/developer/431020308 --- *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 2026-08-01.*