Comparison

Uber Synth vs VAPolyPro

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

VAPolyPro

Create a wide range of sounds with this polyphonic synthesizer, featuring multiple oscillator and filter types, MPE support, and built-in effects. It functions as a standalone app or an AudioUnit Extension for Mac and iOS devices, with iCloud Drive integration for project sharing.

Highlights
  • Multiple VCO and VCF types
  • Stereo VCF and VCA
  • MPE support
  • Built-in effects
  • Step sequencer
  • Audio Unit Extension (AUv3)
  • iCloud Drive project sharing
Features
Read full description

VAPolyPro features three types of VCOs and three types of VCFs that can generate a wide range of sounds, from warm analog synths to FM-synthesized acoustic instruments. It also includes a stereo VCF and VCA for spacious sound, and MPE for expressive sound. VAPolyPro operates as a stand alone or as an AudioUnit Extension (AUv3) for iPhone, iPad and Mac. Stand Alone supports Ableton Link, MIDI and audio file export. Built-in Effects include delay, chorus, flanger, reverb, eq and compressor. Project files can be saved in iCloud Drive, so that the project can be accessed from iPhone, iPad or Mac. Main Features 3 types of VCO includes Analog, Unison and FM. 3 types of VCF includes Cascade, Ladder And Sallen-Key. Stereo VCF and VCA. Support MPE through MIDI2.0 MPE Profile. Pseudo velocity/ pressure for iOS piano keyboard. 3 channel analog style step sequencer. Maximum 8 voice polyphony. it depends on performance of the device it is running. Built-in effects and piano roll sequencer. Audio Export. Linear PCM format (AIFF, WAV and CAF) and compressed format (AAC) Support Audio Unit Extension (AUv3). Support MIDI 2.0. Support Ableton Link, Bluetooth MIDI, MIDI In / Out. Works on iPhone, iPad and Mac. Support iCloud Drive to share project files between the platforms. Support MIDI Foot Pedal (CC#11, CC#64) MIDI CC Settings are saved. It will be recovered when the app launched in the next time. Selectable UI Color. Font size for title of controls are adjustable. - Factory Preset 336 - Effects Preset 40 System Requirements (This app is offered as universal purchase for iOS and macOS) iOS 17.0 or later macOS 14.0 or later Devices with Apple Silicon are recommended. A13 Fusion or above is highly recommended. AudioUnit Extension (AUv3) requires host application which support AudioUnit Extension. AudioUnit Extension is supported by Apple Logic and Apple Garage Band on iOS and macOS. For any other DAW, it depends on the application and some of them don’t support AudioUnit Extension.

Screenshots

Uber Synth4 screens
VAPolyPro4 screens

Verdict

The call

The clearest difference is price: Uber Synth at $3.99 against VAPolyPro's $19.99. Uber Synth also leads on iOS requirement (14.0 vs 16.6). VAPolyPro's advantage is rating (5.0 vs 2.0) and update cadence (every 2 days vs every 3 months). On ratings volume, ads, in-app purchases and monetization model 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 VAPolyPro $19.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

VAPolyPro holds the better App Store score, 5.0 against 2.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

UpkeepUpdate frequency

Uber Synth ships an update every 3 months, VAPolyPro every 2 days. The most recent releases landed on September 29, 2026 and September 28, 2026 respectively.

Scorecard4 real differences · 6 level
Uber Synth versus VAPolyPro: the parameters behind the verdict, then further details
ParameterUber SynthVAPolyPro
Price$3.99 — better$19.99
Rating2.0 (1 ratings)5.0 (1 ratings) — better
Positive reviews50.0% of reviews—
Number of ratings11
Update frequencyEvery 3 monthsEvery 2 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPodiPhone, iPad, Mac
Requires iOS14.0 — better16.6
Further details — not scored
Size7 MB22 MB
Age rating4+4+
DeveloperMark CarlottoRyo Togawa

Customer experience

Uber Synth

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

VAPolyPro

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Uber Synth

No in-app purchases

None

VAPolyPro

No in-app purchases

Questions

Is Uber Synth free?
Uber Synth costs $3.99, with no in-app purchases.
Is VAPolyPro free?
VAPolyPro costs $19.99, with no in-app purchases.
Which has better reviews, Uber Synth or VAPolyPro?
VAPolyPro is rated higher. Uber Synth averages 2.0 out of 5 from 1 ratings, while VAPolyPro averages 5.0 from 1 ratings.
Do Uber Synth or VAPolyPro have ads?
Neither Uber Synth nor VAPolyPro shows ads.
Which is updated more often, Uber Synth or VAPolyPro?
Uber Synth ships an update every 3 months, and VAPolyPro every 2 days. Most recently, Uber Synth was updated on September 29, 2026 and VAPolyPro on September 28, 2026.

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