Comparison

Uber Synth vs FilterMorph AUv3 Audio Plugin

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

FilterMorph AUv3 Audio Plugin

This audio effect plugin offers a unique approach to filtering, allowing seamless morphing between different filter types. It integrates with DAWs and provides advanced control through touchpads and modulation.

Highlights
  • Transitional filter morphing
  • Dual touch-pad parameter control
  • Real-time and beat-synced automation
  • Integrated overdrive and tape delay
  • Configurable modulation section
  • Preset management
Read full description

This is a AUv3 compatible audio effect which can be used as plugin with your favourite DAW such as Cubasis, Meteor, Auria or GarageBand and NOT a standalone app. It supports a modern graphical interface and presets with stereo meters for monitoring signal levels. The FilterMorph is one of our most fun, interesting, experimental and yet incredibly useful AUv3 plugins to date. It takes the concept of a traditional audio filter and pairs it with overdrive, bit crunching and tape delay to perform some incredibly neat real-time or beat synced automation effects. At the heart of the effect are a set of transitional filters (low pass, high pass, band pass, notch and formant filter) which you can assign to the Cutoff Control. The twist here is that you can assign different filters to each end of the frequency spectrum and morph between them to achieve a much more interesting results. So for example you can use a LP filter for low frequencies and a BP filter for high frequencies, and the frequency dial will smoothly transition between the two. The main interface of the effect scrolls to reveal a set of two finger touch-pads, each of which responds to one of more fingers. Each pad can be assigned two of several parameters, one to the vertical axis, and the other to the horizontal. This allows you to control up to 4 knobs in real-time using only two fingers. A glide control allows you to control the rate of change so you can create those gentle sweeps without the effort. But it doesn't stop there... we also include effects such as overdrive, bit shifter and tape delay and these parameters can also be freely assigned to the finger pads. A configurable modulation section also allows you to automate panning or vibrato and assign various envelope shapes. Hold multiple fingers down on a pad and the play cursor will fly between your fingers at a specified speed. Press the HOLD button and you can then release your fingers and have them playback a set pattern. Press the SYNC TO BEAT button and the play cursor will move from one point to another at set beat intervals. Use the FOLLOW feature to follow finger movements etc. The build in Tape Delay allows control over delay time, feedback and level, but the advantage of this type of delay is you get the warping pitch shifting effects as you change the delay time. This allows for some very interesting effects, especially when applied to strings or held chords. This is an essential tool for those wanting to add a creative or experimental twist to any form of electronic composition, adding a few extra dynamics into your mix with very little effort. This is one of a suite of AUv3 compatible plugins which will also soon be available from 4Pockets.

Screenshots

Uber Synth4 screens
FilterMorph AUv3 Audio Plugin4 screens

Verdict

The call

The clearest difference is review sentiment: FilterMorph AUv3 Audio Plugin at 100% against Uber Synth's 50%. FilterMorph AUv3 Audio Plugin also leads on rating (4.2 vs 2.0) and ratings volume (5 vs 1). Uber Synth's advantage is price ($3.99 vs $5.99). On update cadence, 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 FilterMorph AUv3 Audio Plugin $5.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

FilterMorph AUv3 Audio Plugin holds the better App Store score, 4.2 against 2.0. That said, the two scores are not equally well evidenced: FilterMorph AUv3 Audio Plugin has 5 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 50% of Uber Synth's written reviews are positive against 100% of FilterMorph AUv3 Audio Plugin's.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on October 15, 2026 and October 16, 2026 respectively.

Scorecard4 real differences · 6 level
Uber Synth versus FilterMorph AUv3 Audio Plugin: the parameters behind the verdict, then further details
ParameterUber SynthFilterMorph AUv3 Audio Plugin
Price$3.99 — better$5.99
Rating2.0 (1 ratings)4.2 (5 ratings) — better
Positive reviews50.0% of reviews100.0% of reviews — better
Number of ratings15 — better
Update frequencyEvery 3 monthsEvery 3 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS14.013 — better
Further details — not scored
Size7 MB9 MB
Age rating4+4+
DeveloperMark Carlotto4Pockets.com

Customer experience

Uber Synth

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

FilterMorph AUv3 Audio Plugin

All ratings5 ratings
Positive80.0%
Neutral0.0%
Negative20.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Uber Synth

No in-app purchases

None

FilterMorph AUv3 Audio Plugin

No in-app purchases

Questions

Is Uber Synth free?
Uber Synth costs $3.99, with no in-app purchases.
Is FilterMorph AUv3 Audio Plugin free?
FilterMorph AUv3 Audio Plugin costs $5.99, with no in-app purchases.
Which has better reviews, Uber Synth or FilterMorph AUv3 Audio Plugin?
FilterMorph AUv3 Audio Plugin is rated higher. Uber Synth averages 2.0 out of 5 from 1 ratings, while FilterMorph AUv3 Audio Plugin averages 4.2 from 5 ratings.
Do Uber Synth or FilterMorph AUv3 Audio Plugin have ads?
Neither Uber Synth nor FilterMorph AUv3 Audio Plugin shows ads.
Which is updated more often, Uber Synth or FilterMorph AUv3 Audio Plugin?
Uber Synth ships an update every 3 months, and FilterMorph AUv3 Audio Plugin every 3 months. Most recently, Uber Synth was updated on October 15, 2026 and FilterMorph AUv3 Audio Plugin on October 16, 2026.

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