Comparison

Zeeon synth vs TROOPER Synthesizer

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

Head to head
About

Zeeon synth

This app is a virtual analog synthesizer that recreates the sound and feel of classic hardware. It features a detailed circuit-modeling engine, powerful modulation, and multiple filter models for rich, organic soundscapes. Explore a vast array of presets and expand your sonic palette with additional sound banks.

Highlights
  • Circuit-modeling engine
  • Powerful modulation matrix
  • Dual oscillators with variable waveforms
  • Multiple filter models
  • Built-in effects unit
  • Audio Unit v3 support
  • Polyphonic step sequencer
Features
Read full description

Zeeon is a virtual-analog synthesizer built on a deeply detailed circuit-modeling engine. We’ve studied classic and modern analog synths to uncover what gives them their unmistakable character and recreated that essence with precision. The result is a unique instrument that delivers the warmth, movement, and organic depth of true hardware. While many emulations sound flat, Zeeon breathes. Every note is alive, with tight lows and shimmering highs. All audio and modulation are processed at 176 kHz (4× oversampling) for uncompromised quality across the entire spectrum. “Desktop-class sound engine … fidelity of this analog emulation goes beyond everything else on iOS.” – App Store review Features • Audio Unit v3 and standalone application with a simple polyphonic step sequencer • Powerful modulation matrix offering self-modulation and cross-layer modulation, 8 modulation slots, 17 signal sources and 41 targets available, both from modulation modules and audio signal path. This takes Zeeon into semi-modular territory. Imagine oscillator waveform, panning, filter cutoff, resonance or LP-HP mode modulated by oscillators or another layer! • 2 oscillators with continuously variable waveforms, hard-sync and sub-oscillator. Carefully simulated analog drift and PSU influence. • Filter: 3 models available: Transistor ladder low pass, OTA cascade low pass and State Variable Filter with continuously variable LP-HP + BP mode. • 2 low frequency oscillators and envelope generators per voice. • Overdrive: diode clipper, transistor saturation, wave folder, pre and post filter. • Up to 2 layers per voice. Layers can modulate each other. • Effects unit: Circuit modelled BBD chorus, bass booster, zero-delay Phaser, Stereo delay and Reverb. • 280 presets and Tutorials bank. 3 additional banks available as IAPs. Full manual and audio demos available at the BeepStreet website.

About

TROOPER Synthesizer

This app offers a powerful yet user-friendly synthesizer experience, delivering thick basses, leads, and pads with analog warmth and surprising tonal variety. Explore unique parameter interactions, advanced modulation options, and creative tools like an arpeggiator and effects processor for an all-out sonic assault.

Highlights
  • Thick basses, leads, and pads
  • Interactive oscillator volumes
  • Audible LFO for sound and modulation
  • Throaty, self-oscillating filter
  • Virtual VCA with "fat" tones
  • Arpeggiator with five algorithms
  • Texturizer effects suite
Read full description

Thick basses, buttery leads, feathery pads — Trooper is a total synth explosion that crams it all and more in a neat little package. It sounds HUGE, yet tweaks easy. It’s coated in analog “fat,” yet bursts with tonal surprises nestled across its controls. Get ready for an all-out sonic assault, because Trooper is here and it's our meanest, beastliest, user-friendliest synth yet! Many of Trooper’s parameters are meant to interact and meld together in novel ways. For example, the oscillator volumes —beyond just acting as mere blend knobs— vary the characteristics of the basic signal depending on how far they are “pushed". The emphasis is on providing warm and round basic tones with lots of variable harmonic content. The primary oscillators are backed by an audible LFO that is both a sound source and a wide frequency range modulator. This lets FM-based sounds to combine with traditional waveforms. A pink/white noise generator helps out pads and percussions, and insidiously changes tonality when added in small amounts. A new filter implementation complements the pugnacity of the signal generators. In its middish settings, the resonance can be characterized as “throaty.” The filter is capable of self-oscillating, and can be controlled via the keyboard. The mated ADSR envelope is shaped to provide tonal ‘immediacy’ and smooth frequency shifts. The amount knob has a wide range that changes the feel and shape of the envelope, especially when pushed above the mid-level. The output stage features a virtual VCA that imparts tones colloquially termed as “fat”. Extra modulation is provided by a non-audible LFO and a dedicated envelope. The LFO offers numerous wave shapes, BPM syncing, and key tracking. Its output is controllable via the mod wheel, velocity, or aftertouch. The Esprit parameter helps deploy some of the Trooper “special sauce.” Highly interactive with the stages preceding it, Esprit is known to be handy in tightening up bass tones, and in adding the "je nais se quois” to presets at large. The Get6 parameter is a one-touch ticket to big, mix-filling synth sounds. So whenever you’re lost in an empty mix…it’s got your six. The arpeggiator inspires rhythms with five algorithms, variable note value, octave range, and gate. The “Texturizer" purveys a wide range of modulation effects that include chorus, flanging, variable comb, resonant delay, and stereo imaging. The BPM-syncable two-tap delay has time and feedback controls per channel, and is tuned a little darker than our usual offerings. Trooper can run in monophonic or polyphonic mode, the latter providing up to 12 voices. Legato is available in either mode. The robust MIDI implementation also includes MPE support, and the synth is able to I/O MIDI performance data. The “MagTouch” virtual controller lets you to play and record (in AUv3 hosts so enabled) over the MPE protocol. MIDI learn is made easy via a visual interface, and users can save, patch-link, and share MIDI CC maps. Bluetooth MIDI input is also supported. The AUv3 implementation lets you to run multiple instances of Trooper in DAWs. Trooper’s fluid UI accommodates a wide variety of screen sizes and view configurations. Feature navigation is designed to be nonintrusive so that parameters can be accessed easily. The iPad implementation supports portrait layout, so that pretty much all is on one screen. Included are over 250 presets that range from deep basses to weird so-and-so's, stopping by many other sounds along the way. The powerful YPAT2 system helps you save, catalog, and share presets with ease. The standalone app provides a “Tapedeck” to record, save, and share your ideas on the quick. It features a built-in looper, and a metronome with configurable time signature. The standalone also features tap tempo, and MIDI clock syncing. DSP is in high resolution 64-bit, with native processing at up to 96kHz.

Screenshots

Zeeon synth3 screens
TROOPER Synthesizer4 screens

Verdict

The call

Zeeon synth and TROOPER Synthesizer are too close to call on the numbers: across 10 compared parameters — price, rating, review sentiment and ratings volume among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

Zeeon synth costs $14.99 and TROOPER Synthesizer $14.99 up front. Zeeon synth sells 3 one-off in-app purchases and TROOPER Synthesizer sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.8 for Zeeon synth against 4.8 for TROOPER Synthesizer. Both are backed by a comparable volume of ratings — 209 and 71 respectively. Written reviews are what separate them: 76% of Zeeon synth's written reviews are positive against 73% of TROOPER Synthesizer's.

UpkeepUpdate frequency

Zeeon synth ships an update every 2 months, TROOPER Synthesizer every 6 weeks. The most recent releases landed on November 2, 2026 and October 30, 2026 respectively.

ScorecardNo meaningful differences
Zeeon synth versus TROOPER Synthesizer: the parameters behind the verdict, then further details
ParameterZeeon synthTROOPER Synthesizer
Price$14.99$14.99
Rating4.8 (209 ratings)4.8 (71 ratings) — better
Positive reviews76.0% of reviews — better73.1% of reviews
Number of ratings209 — better71
Update frequencyEvery 2 monthsEvery 6 weeks — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.614.0 — better
Further details — not scored
Size27 MB37 MB
Age rating4+4+
DeveloperBeepStreetYonac Inc.

Customer experience

Zeeon synth

All ratings209 ratings
Positive93.8%
Neutral2.4%
Negative3.8%
Written reviews167 reviews
Positive76.0%
Neutral7.2%
Negative16.8%

TROOPER Synthesizer

All ratings71 ratings
Positive95.8%
Neutral1.4%
Negative2.8%
Written reviews26 reviews
Positive73.1%
Neutral19.2%
Negative7.7%

Bugs and requests

Zeeon synth

Reported bugs

4 issues
  • Preset settings not retained after app restart
  • Synth reverts to default settings when reopening Logic Pro project
  • Crashes and freezes on certain iOS 14+ devices
  • Inability to access in-app purchases from within the app

Requested features

5 requests
  • Add MIDI learn functionality
  • Implement a more robust preset management system
  • Include a built-in sequencer with save/load capabilities
  • Improve UI scaling and layout for larger iPad screens
  • Provide better integration with inter-app audio and Audiobus

TROOPER Synthesizer

Not enough reviews yet to summarise bugs or requests.

In-app purchases

3 purchases

Zeeon synth

One-time3
  • OI - Exploration Vol. 1$3.99
  • BB Z-Space$4.99
  • BB Synthwave$4.99
3 purchases

TROOPER Synthesizer

One-time3
  • Magnum Load$1.99
  • Slow Burn$1.99
  • The EDC$1.99

Questions

Is Zeeon synth free?
Zeeon synth costs $14.99, and also offers in-app purchases.
Is TROOPER Synthesizer free?
TROOPER Synthesizer costs $14.99, and also offers in-app purchases.
Which has better reviews, Zeeon synth or TROOPER Synthesizer?
TROOPER Synthesizer is rated higher. Zeeon synth averages 4.8 out of 5 from 209 ratings, while TROOPER Synthesizer averages 4.8 from 71 ratings.
Do Zeeon synth or TROOPER Synthesizer have ads?
Neither Zeeon synth nor TROOPER Synthesizer shows ads.
Which is updated more often, Zeeon synth or TROOPER Synthesizer?
Zeeon synth ships an update every 2 months, and TROOPER Synthesizer every 6 weeks. Most recently, Zeeon synth was updated on November 2, 2026 and TROOPER Synthesizer on October 30, 2026.

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