Comparison

Uber Synth vs WBTRK

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

WBTRK

Create music on the go with a comprehensive mobile studio. Features a tracker grid, multiple sound engines, a sampler, and a mixer. Offers live performance mode and extensive effects for detailed sound shaping.

Highlights
  • Tracker grid for note input
  • 21 sound engines and 450+ sounds
  • Sampler with recording and editing
  • Twelve-channel mixer
  • Live performance mode
  • AUv3 plug-in hosting
  • MIDI and Ableton Link support
Read full description

WBTRK is a complete music studio in your pocket: a fast tracker grid, 21 sound engines, a library of over 450 ready-made sounds, drum kits, a sampler, per-note effects, a twelve-channel mixer, a live performance mode, plug-in hosting and MIDI. One purchase for iPhone, iPad and Mac. WRITE • PHRASES of 16 steps hold notes, chords, instrument, velocity and effects; they stack into CHAINS, and chains arrange into a twelve-channel SONG • Hold a cell and slide to set a note or a value — it plays as you go • Select, copy and paste cell by cell, transpose whole sections, and end a note exactly where you want with OFF • Every channel loops on its own and can run at its own tempo, locked to one clock • A hardware keyboard on iPad and Mac, a MIDI keyboard, or any Bluetooth game controller drives the whole tracker SOUND • Over 450 ready-made sounds sorted by what they are — drums, bass, keys, bells, plucked, strings, winds, voice, leads, pads, fx — each one a tap away from playing, all balanced to the same loudness. Save your own for any engine • DRUM KIT: ten drum slots in one instrument — eight built-in kits, or build your own from any sound or sample • Classic synths: pulse, saw, triangle, FM, noise, supersaw pad, sub, pluck, wavetable and the dual-oscillator MODX, plus DRUM, an analog drum voice • WOVEN, a macro-oscillator with 24 models and 96 classic DX7 patches; ROUND, a resonator for strings, bars and bells; MODAL for struck percussion • SAMPLER: record or import, chop at transients, stretch to the tempo, loop, reverse, round-robin • SPEECH sings your lyrics in English and Japanese; GRAIN turns any recording into clouds; DRONE, RESONATOR and TEXTURE build ambient beds • AUv3 hosting: play your instrument plug-ins and insert effect plug-ins on any channel SHAPE • 32 effects on any note: delays, reverbs up to thirty seconds, tempo-synced gate and autopan, retrigger, chorus, flanger, ring mod, wavefold, bitcrush, slides, vibrato, arps, FOGGY granular clouds and more • AUT automation morphs an instrument and its effect across the rows • RANDOM dice, tables for instant arpeggios, a groove editor per instrument, scale lock • A twelve-channel mixer with volume, pan, mute, solo and plug-in inserts PERFORM • LIVE MODE: launch phrases from six scenes on pads, quantized to the beat or the bar, and punch in delay and filters — or latch them CONNECT • MIDI in with step and live recording, MIDI out to hardware, MIDI clock and Ableton Link KEEP • Render to WAV (16 or 24 bit), stems and MIDI; share songs as files; your session autosaves • A lock-screen player with cover art in your theme • 28 themes — the studio look comes in dark and light and can follow your device — a theme editor, seven typefaces, hex numbers if you like • English and Japanese, and a demo song to start from Everything runs on your device. No account, no ads, no subscription, nothing collected.

Screenshots

Uber Synth4 screens
WBTRK4 screens

Verdict

The call

The clearest difference is review sentiment: WBTRK at 100% against Uber Synth's 50%. WBTRK also leads on rating (5.0 vs 2.0) and update cadence (every 6 days vs every 3 months). Uber Synth's advantage is iOS requirement (14.0 vs 18.0). 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 WBTRK $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

WBTRK holds the better App Store score, 5.0 against 2.0. That said, the two scores are not equally well evidenced: WBTRK has 6 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 WBTRK's.

UpkeepUpdate frequency

Uber Synth ships an update every 3 months, WBTRK every 6 days. The most recent releases landed on November 1, 2026 and November 5, 2026 respectively.

Scorecard6 real differences · 4 level
Uber Synth versus WBTRK: the parameters behind the verdict, then further details
ParameterUber SynthWBTRK
Price$3.99$2.99 — better
Rating2.0 (1 ratings)5.0 (6 ratings) — better
Positive reviews50.0% of reviews100.0% of reviews — better
Number of ratings16 — better
Update frequencyEvery 3 monthsEvery 6 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPodiPhone, iPad, Mac
Requires iOS14.0 — better18.0
Further details — not scored
Size7 MB21 MB
Age rating4+4+
DeveloperMark CarlottoLASZLO DOBROVOLSZKI

Customer experience

Uber Synth

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

WBTRK

All ratings6 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews5 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Uber Synth

No in-app purchases

None

WBTRK

No in-app purchases

Questions

Is Uber Synth free?
Uber Synth costs $3.99, with no in-app purchases.
Is WBTRK free?
WBTRK costs $2.99, with no in-app purchases.
Which has better reviews, Uber Synth or WBTRK?
WBTRK is rated higher. Uber Synth averages 2.0 out of 5 from 1 ratings, while WBTRK averages 5.0 from 6 ratings.
Do Uber Synth or WBTRK have ads?
Neither Uber Synth nor WBTRK shows ads.
Which is updated more often, Uber Synth or WBTRK?
Uber Synth ships an update every 3 months, and WBTRK every 6 days. Most recently, Uber Synth was updated on November 1, 2026 and WBTRK on November 5, 2026.

Other comparisons