# Johnny - Multiwave Tremolo FX > Stereo multiwave tremolo effect for iOS with Audiobus and IAA support. (iPhone/iPad app by Holderness Media.) - Source: https://appshunter.io/ios/app/johnny-multiwave-tremolo-fx/id962689306 (this page in markdown: same URL + `.md`) - Developer: [Holderness Media](https://appshunter.io/developer/431020308) - Category: Music, Entertainment - Price: $4.99 - Rating: 5.00/5 from 1 App Store ratings · 4 written reviews indexed - Age rating: 4+ - Requires: iOS 12.4 · 3 MB - Languages: American English - Released: 2015-04-07 - Data updated: 2026-08-01 - Monetization: paid - User reviews in markdown: https://appshunter.io/ios/app/johnny-multiwave-tremolo-fx/id962689306/reviews.md ## What is Johnny? Johnny is a highly versatile stereo multiwave tremolo effect designed for Audiobus and Inter-App Audio, perfect for adding everything from classic guitar amp style tremolo to pulsating, rhythmic multiwave modulation effects for guitar, synths, voice and more. Harmonic Tremolo modes create vintage phaser and univibe like tones, you can also modulate the rate of the main LFOs with a second LFO for interesting speed sweep effects. In addition to Audiobus and Inter-App Audio, Johnny can process external hardware by connecting a professional USB audio interface such as the Apogee Jam or Apogee ONE, and many more compatible USB interfaces. You can also use the built in headset microphone. Guitarists can use the effects live by connecting the output of their audio interface to an amp. Johnny supports USB MIDI interfaces via the Camera Connection kit, Bluetooth MIDI (iOS 8), Virtual MIDI and WiFi connections. The MIDI Learn function lets you easily assign your MIDI controller's knobs and sliders to control Johnny's effect parameters. For more info and video demos visit: https://holdernessmedia.com Check out our entire FX series including Caramel, Crystalline, Echo Pad, Stereo Designer and Swoopster! COMPATIBILITY: • requires iOS 12.4 or later • iPad 2, iPad Mini 1st gen or newer • Audiobus 3 compatible (Effect, state saving) • Inter-App audio compatible (effect node) • Compatible with DAW apps such as Auria, Cubasis, Garageband and Multitrack DAW • compatible with USB audio interfaces • Core MIDI (USB, Virtual, Wifi) • MIDI over Bluetooth (iOS 8, receiver)   FEATURES: • Control Left and Right channel Tremolo Rate, Depth, Shape, and Multiwave parameters to produce everything form subtle tremolo to wildly modulated stereo tremolo effects. • Multiple modes including Classic Tremolo and Harmonic Tremolo. • Modulate the rate of the main LFOs with a second LFO for interesting speed sweep effects. • BPM synced tremolo including MIDI clock sync, independent per channel or linked. • Audiobus compatible with state saving • Inter-app Audio compatible • Core MIDI compatible, works with any MIDI controller via MIDI Learn • Select presets via MIDI program change Johnny 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 and Jam96k • Apogee Mic and Mic96k • Apogee ONE for iPad/Mac • Apogee DUET for iPad/Mac • Apogee QUARTET for iPad/Mac • iConnectMIDI2+ • iConnectMIDI4+ • iRig • iRig HD • iRig iMic • Focusrite Scarlett series (*requires USB hub) • Focusrite iTrack dock • Alesis io2 • Alesis IO Dock • Behringer UCA202 • many more ## Key features - Stereo multiwave tremolo - Classic and Harmonic Tremolo modes - Second LFO for speed sweep effects - BPM synced tremolo with MIDI clock sync - Audiobus and Inter-App Audio compatible - MIDI Learn for controller assignment - Preset selection via MIDI program change ## Recent user reviews (4 of 4) All indexed reviews: https://appshunter.io/ios/app/johnny-multiwave-tremolo-fx/id962689306/reviews.md ### 4/5 — Great Tremolo *2017-05-08* Very efficient and surprising tremolo functions, including the possibility of having two independent tremolos, one Left and one Right, with Midi Learn for all the features: good-bye tremolo pedals! Very friendly and effective support, too. ### 5/5 — Typical Holderness quality... *2016-03-16* I own every app that Chris Rice has released to this point and they all represent incredible value; whether you're buying them on sale or paying full price. Support this dev - he's got his finger on the pulse of iOS music development. ### 5/5 — Holderness.. *2015-04-22* Very cool app as usual with this dev.hats off! ### 4/5 — Minus one star for not adding to the bundle upon release *2015-04-13* This is a solid fx app; all Holderness fx apps are great. My only complaint is not including this in the bundle. It would be a good reward for loyal customers such as myself who have already purchased all of the previous releases. As far as the sound goes, well, this is probably one of the better if not the best of the bunch. Crystalline is my other favorite and if you don't have it yet stop reading this and get it now - it is one of the few truly unique iOS effects that really enriches the sounds rather than flattening them to the point where it would hardly matter what the source sound is. This one is equally awesome and both would compliment each other well. ## Frequently asked questions about Johnny ### What is Johnny? Johnny is a stereo multiwave tremolo effect designed for iOS devices. It allows users to add a variety of tremolo modulations to instruments and vocals, ranging from classic amp-style tremolo to complex rhythmic effects. ### What devices is Johnny compatible with? Johnny requires iOS 12.4 or later and is compatible with iPad 2, iPad Mini 1st gen, or newer devices. It also works with Audiobus 3 and Inter-App Audio. ### Can Johnny be used with external audio interfaces? Yes, Johnny can process external hardware by connecting professional USB audio interfaces like the Apogee Jam or Apogee ONE, and many other compatible USB interfaces. It also supports the built-in headset microphone. ### Does Johnny support MIDI controllers? Yes, Johnny supports USB MIDI interfaces, Bluetooth MIDI, Virtual MIDI, and WiFi connections. The MIDI Learn function allows easy assignment of MIDI controller knobs and sliders to control effect parameters. ### What are the different tremolo modes available in Johnny? Johnny offers multiple modes including Classic Tremolo and Harmonic Tremolo. Harmonic Tremolo modes can create vintage phaser and univibe-like tones. ### How does Johnny handle synchronization? Johnny supports BPM synced tremolo, including MIDI clock sync. This synchronization can be set independently per channel or linked. ### What is the price of Johnny? Johnny is a paid application priced at $4.99. ### How often is Johnny updated? The latest version of Johnny, 1.1.7, was released on May 2, 2024. Updates are released periodically to improve functionality and compatibility. ## Version history (last 5 releases) ### 1.1.7 — 2024-05-02 • Add Bluetooth audio support. • Various bugfixes and improvements. ### 1.1.6 — 2024-04-29 • Various bugfixes and improvements. ### 1.1.5 — 2024-04-28 • Various bugfixes and improvements. ### 1.1.4 — 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 ### 1.1.3 — 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) - [Swoopster - Fuzz Flanger FX](https://appshunter.io/ios/app/swoopster-fuzz-flanger-fx/id736436952) - [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.*