Comparison

DXi FM synthesizer vs Dexed Synth

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

DXi FM synthesizer

Create unique sounds and music with this FM synthesizer app inspired by 80s hardware. Explore a variety of parameters to craft special tones and effects, and even record your creations. Includes a bonus 16-step loop sequencer for added musical exploration.

Highlights
  • 4 operator FM synthesis
  • 8 algorithms
  • Adjustable operator parameters
  • Master LPF and Delay effects
  • 16-step loop sequencer
  • Audio recording and export
  • MIDI keyboard support
Features
Currently charting
Read full description

DXi is a FM synthesizer application inspired by 80's most popular FM synthesizer. You will enjoy creating sounds as well as playing music with this application. FM synthesizer is still popular among many people by its unique tone. We carefully selected parameters from original synthesizer so you will be enjoy editing tone with them easily. You need to know some technique to tweak the tone, but you will be able to get DXi's special tone and effects while having some fun! Creating sound effects is another idea to enjoy DXi. We loaded 16 step loop sequencer as a bonus feature! If you remember the days of FM synthesizers, try creating the tone you remember from them. If you have no experience with any FM synthesizer, we are sure you will be enjoying the unique tone world! * 4 operators FM synthesizer * Anti-ailiased oscillator * 8 algorithms * Envelope, frequency (Ratio or Fixed), waveform (12 types) can be set each operators. * Feedback control on operator number 4. * 2 master effects (LPF with Resonance and Delay) * Unison mode * Spectrum and oscilloscope view * Import/Export function to save the tone you created. (URL schema text string format) * Audio recording function. And you can transport recorded audio file, .wav, onto Mac/PC via iTunes file sharing. * Clipboard audio sharing support. You can export recorded waveform to other application via clipboard. It's compatible with Intua's clipboard. * Supports external MIDI keyboards via Core MIDI USB adapters. * Supports background audio and virtual MIDI input port. * Supports Audiobus.

About

Dexed Synth

This app brings a powerful FM synthesizer to your mobile device, offering a vast library of sounds. It integrates with popular DAWs and supports external MIDI controllers for enhanced control and performance.

Highlights
  • FM Synthesizer port
  • Over 20,000 cartridges with 32 patches each
  • AudioUnit AUv3 plugin support
  • MIDI controller input via USB
  • Lock scroll and parameter locking
  • MIDI CC mapping
Features
Currently charting
Read full description

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.

Screenshots

DXi FM synthesizer4 screens
Dexed Synth4 screens

Verdict

The call

The clearest difference is review sentiment: DXi FM synthesizer at 88% against Dexed Synth's 29%. DXi FM synthesizer also leads on rating (4.3 vs 3.1) and price ($1.99 vs $3.99). On ratings volume, update cadence, ads and in-app purchases there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

DXi FM synthesizer costs $1.99 and Dexed Synth $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

DXi FM synthesizer holds the better App Store score, 4.3 against 3.1. Both are backed by a comparable volume of ratings — 19 and 43 respectively. Written reviews point the same way: 88% of DXi FM synthesizer's written reviews are positive against 29% of Dexed Synth's.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 29, 2026 and October 26, 2026 respectively.

Scorecard5 real differences · 6 level
DXi FM synthesizer versus Dexed Synth: the parameters behind the verdict, then further details
ParameterDXi FM synthesizerDexed Synth
Price$1.99 — better$3.99
Rating4.3 (19 ratings) — better3.1 (43 ratings)
Positive reviews87.6% of reviews — better28.8% of reviews
Number of ratings1943 — better
Update frequencyEvery 2 monthsEvery 2 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
Best chart rank#160 — better#184
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS8.4 — better15.0
Further details — not scored
Size5 MB105 MB
Age rating4+12+
DeveloperTakashi MizuhikiGeorge Rosar

Customer experience

DXi FM synthesizer

All ratings19 ratings
Positive84.2%
Neutral5.3%
Negative10.5%
Written reviews153 reviews
Positive87.6%
Neutral3.3%
Negative9.2%

Dexed Synth

All ratings43 ratings
Positive39.5%
Neutral27.9%
Negative32.6%
Written reviews59 reviews
Positive28.8%
Neutral23.7%
Negative47.5%

In-app purchases

None

DXi FM synthesizer

No in-app purchases

None

Dexed Synth

No in-app purchases

Questions

Is DXi FM synthesizer free?
DXi FM synthesizer costs $1.99, with no in-app purchases.
Is Dexed Synth free?
Dexed Synth costs $3.99, with no in-app purchases.
Which has better reviews, DXi FM synthesizer or Dexed Synth?
DXi FM synthesizer is rated higher. DXi FM synthesizer averages 4.3 out of 5 from 19 ratings, while Dexed Synth averages 3.1 from 43 ratings.
Do DXi FM synthesizer or Dexed Synth have ads?
Neither DXi FM synthesizer nor Dexed Synth shows ads.
Which is updated more often, DXi FM synthesizer or Dexed Synth?
DXi FM synthesizer ships an update every 2 months, and Dexed Synth every 2 months. Most recently, DXi FM synthesizer was updated on October 29, 2026 and Dexed Synth on October 26, 2026.
Which is more popular, DXi FM synthesizer or Dexed Synth?
DXi FM synthesizer currently peaks at #160 in the App Store charts, and Dexed Synth at #184. Chart position reflects recent download velocity rather than total install base.

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