A port of Dexed, a FM Synthesizer. Features over 20,000 Cartridges with 32 patches each. Comes with AudioUnit AUv3 plugin for use inside AUM and other DAW apps like GarageBand. Get a camera kit and plug in a midi controller through USB, or get a 5-PIN DIN 1/in 1/out, to: USB and use the camera kit through USB MIDI Spec, NOTE: some devices handle SysEx differently and therefore we cannot promise support for SysEx, so invest in connectors and cables wisely. If you have questions involving making MIDI-USB work the best for your situation, email support. This iOS app was designed especially with small interfaces in mind. Example: an iPhone 5S or a resizable window inside AUM. If one clicks the menu eye, a feature LOCK SCROLL can be –very– important to set knobs, sliders, et cetera: if screen size is limited. LOCK PARAMs in the eye menu locks the parameters for scrolling without knocking loose the preset. In the CARTs menu double tap a cartridge to load a series of patches, the files will have a .syx extension. To use MIDI CC, in the menu eye you must first turn on MIDI CC. When MIDI CC is on it makes the tap events react like a right mouse button click. NOTE: MIDI CC, in eye menu, doesn't have to be on after CC controls are mapped. MIDI CC touch modifier will also turn off after you have successfully mapped a CC control, or when you delete the current mappings. You can turn it on again later to turn off mappings or create new CC mappings. I would suggest setting CC knobs in the bottom section of the screen – above keyboard (if visible). Currently you must save patch in DAW – for instance: GarageBand or AUM. Once we can determine unity and saving/loading between the AUv3 plugin and the StandAlone app, external save will be eventually developed. There is a pathway set to transfer .syx files through iTunes to the StandAlone app, only. Other plans include fixing pixelated images, a quick zoom to set CC mode and updating GUI to a higher degree, make sure midi CC knobs update.

What’s New

Version 1.0.90

Updated for new frameworks, libraries and iOS versions.
Known bugs:
Midi CC doesn't update visually but does work
In audio plugin pull down menu needs to actually show visible – high priority fix in future versions

Ratings and Reviews

3.9 out of 5
14 Ratings

14 Ratings

Odobenus ,

An fm synth with a huge patch library

The interface works fine on a 3rd generation iPad 12.9" and fills the whole screen in both landscape and portrait. It is pixilated and I hope the developer polishes it up.
It is great to have all the synth's settings displayed at once and only one other iOS app shows as much.
The most similar app is KQ Dixie which has a similarly complete but much less busy interface and is a much more polished app with a better keyboard. However, Dexed includes a huge patch library which KQ lacks. I have not had a chance to compare the sound of the two apps.
Hopefully, Dexed's developer Wil continue to improve it.

cloud700 ,

Can’t get out of files when in Cubasis

Been using the VST version of this for years and it rocks, this port has some serious issues that need fixing. For instance when using it in Cubasis as an audio unit, when I hit cart and then start browsing the folders and pick a cart there is no way to get back to the synth editing parameters. I hope this gets fixed because this Dexed IOS port sounds great like the VST. I have old school Yamaha FM synths like my TG77 .. but with Dexed VST they just collect dust, and now I’m trying to transition away from my desktop computers to iPads only. Please please don’t abandon this iOS port guys! Big time thanks in advance!

Cenk ,

Excellent sound, UI glitches still present

The AU window only shows you a small portion of the controls on iPad Mini and 10.5 inch Pro. It appears that the developer tried to fix it with the last version. Currently, the only way to use the app is to load the AU in AUM, and orient the device vertically, then go back to horizontal, to access the other presets and preset banks. There is no Inter App Audio with which to record or add FX to the standalone app, which displays correctly. It's technically usable, and it sounds amazing. Hopefully it will work properly soon!


George Rosar
107.7 MB

Requires iOS 12.0 or later. Compatible with iPhone, iPad, and iPod touch.

Age Rating
Infrequent/Mild Alcohol, Tobacco, or Drug Use or References


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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