Comparison

Uber Synth vs isxynth

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

Head to head
About

Uber Synth

This app offers a polyphonic multi-timbral FM synthesizer for iOS devices. It features a triple-oscillator sound engine with five distinct multi-timbral options for creating evolving and complex soundscapes. Supports Audiobus for integration with other music apps.

Highlights
  • Polyphonic multi-timbral FM synthesizer
  • Triple-oscillator cross-modulated FM engine
  • Five multi-timbral options
  • Sound map and sound palettes
  • Evolving sound generation
  • Audiobus support
Features
Read full description

Uber Synth is a polyphonic multi-timbral frequency modulated (FM) synthesizer that runs on any iOS device. The underlying sound engine is based on the triple-oscillator cross-modulated FM synthesizer first introduced in our xMod app. Uber Synth provides five multi-timbral options: 1) Mix the sounds of any two sound patches, 2) combine patches using the sound map, 3) Generate specified as well as randomized sound palettes across the keyboard, 4) Specify a region in sound space centered on a sound and move a point by a variable randomized amount within the region each time you play a note to create an evolving mix of the center sound and the sound nearest the point. 5) Do the same as above moving the point automatically at a specified rate. Supports Audiobus.

About

isxynth

This music effect plugin allows spectral cross synthesis and morphing between two input signals. It separates noise and tone components, offering controls for blending, freezing, and time-based delays. Gestures on controls can be recorded and played back for dynamic sound shaping.

Highlights
  • Spectral cross synthesis
  • Morphing between two input signals
  • Noise and tone component blending
  • Freeze control for spectral blurring
  • 3-second delay lines per input
  • Gesture recording and playback
Features
Read full description

isxysnth is spectral cross synthesis / morphing plugin it gets two input signals, splits each one into 2 parts containing noise and tone components and then allows morphing between all these elements. Freeze control allows spectral blurring-like effect for both input signals, two 3 second delay lines allow selection of different signal in time and also provide "freeze" effect you can process left and right channels on stereo source or use this effect as multi-input AUv3 - in that case it will use 2 stereo inputs. Standalone mode currently works only in "mono" mode - three XY controls set balance between tone and noise components, amount of freeze and set up morphing - both inputs have 3-second delay line; freeze button ("*") toggles off recording. - gestures on all the main controls (3 xy pads and two sliders) can be recorded and played back when appropriate button with ">" label is toggled on - in current version standalone app supports only mono (L + R as inputs I and II) processing

Screenshots

Uber Synth4 screens
isxynth3 screens

Verdict

The call

The clearest difference is review sentiment: isxynth at 100% against Uber Synth's 50%. isxynth also leads on rating (3.7 vs 2.0) and ratings volume (3 vs 1). Uber Synth's advantage is update cadence (every 3 months vs every 34 months) and price ($3.99 vs $7.99). On ads, in-app purchases, monetization model and device support 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

Uber Synth costs $3.99 and isxynth $7.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

isxynth holds the better App Store score, 3.7 against 2.0. Both are backed by a comparable volume of ratings — 1 and 3 respectively. Written reviews point the same way: 50% of Uber Synth's written reviews are positive against 100% of isxynth's.

UpkeepUpdate frequency

Uber Synth ships an update every 3 months, isxynth every 34 months. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

Scorecard6 real differences · 4 level
Uber Synth versus isxynth: the parameters behind the verdict, then further details
ParameterUber Synthisxynth
Price$3.99 — better$7.99
Rating2.0 (1 ratings)3.7 (3 ratings) — better
Positive reviews50.0% of reviews100.0% of reviews — better
Number of ratings13 — better
Update frequencyEvery 3 months — betterEvery 34 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS14.011.0 — better
Further details — not scored
Size7 MB8 MB
Age rating4+4+
DeveloperMark CarlottoAlexey Nadzharov

Customer experience

Uber Synth

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews8 reviews
Positive50.0%
Neutral12.5%
Negative37.5%

isxynth

All ratings3 ratings
Positive66.7%
Neutral0.0%
Negative33.3%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Uber Synth

No in-app purchases

None

isxynth

No in-app purchases

Questions

Is Uber Synth free?
Uber Synth costs $3.99, with no in-app purchases.
Is isxynth free?
isxynth costs $7.99, with no in-app purchases.
Which has better reviews, Uber Synth or isxynth?
isxynth is rated higher. Uber Synth averages 2.0 out of 5 from 1 ratings, while isxynth averages 3.7 from 3 ratings.
Do Uber Synth or isxynth have ads?
Neither Uber Synth nor isxynth shows ads.
Which is updated more often, Uber Synth or isxynth?
Uber Synth ships an update every 3 months, and isxynth every 34 months. Most recently, Uber Synth was updated on November 1, 2026 and isxynth on November 3, 2026.

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