Comparison

Phase84 vs Zeeon synth

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

Head to head
About

Phase84

This app is a powerful phase distortion synthesizer that blends digital grit with analog warmth. It offers over 100 presets for various sounds and integrates with other music apps for a modular workflow.

Highlights
  • Over 100 presets
  • MIDI support
  • Inter-App Audio support
  • Tabletop Ready App integration
  • Advanced Keyboard section
  • Expressive Perform Mode
  • Stereo delay with loss modeling
Features
Read full description

Phase84 is a next generation phase distortion synthesizer. It fuses gritty digital sounds with traditional analog punch. +++++ Phase84 is a Tabletop Ready App. Combine Phase84 with drum machines, sequencers, effects, and more inside Tabletop — a free modular music app for iPad. +++++ Phase84 is an extremely capable synthesizer and features over 110 presets, containing all sorts of basses, leads, pads, bell tones, sweeps, atmospheric sounds, pseudo-realistic tones, and more. While you don't need to know much about synthesizers to get a lot out of Phase84, experienced synth tweakers will be thrilled at the sheer variety of unique sounds that can be produced with this incredibly versatile synth. So What's Phase84 All About? Phase84 is what's known as a Phase Distortion synthesizer. This form of waveshaping synthesis has its roots in Casio’s brilliant CZ line of digital synthesizers from the 80s. It is designed to have the warmth of a subtractive (analog) synthesizer, yet be capable of the squelchy tones and sharp attacks of an FM synth. Phase84 in particular can create warm pads, glitchy sounds, dirty basses, filthy sweeps, screaming leads, and anything in-between. For those familiar with the typical Moog-like (or iMini-like!) synthesis, think of the "shaper" as being synonymous with "brightness" or "filter cutoff”. Features: More than 100 presets. MIDI support. inter-App Audio support. Advanced Keyboard section. Expressive Perform Mode with Groove Gate. Tabletop Ready App. Precision Knob mode. Phat, naturalistic unison feature for super thick pads and sweeps. Oscillator Section: 9 Params, 2 General-Purpose Oscillators, 1 Formant Oscillator. Mix Section: 8 Params including Delay Amount and Pulse Width. Envelope Section: Amplitude and Shaper Envelopes. Fully visualized and interactive ADSR plus special Fade Param. Delay/Filter Section: Stereo delay with loss modeling and a punchy overdriven analog-style filter. 3 LFOs: More flexible than your average LFO, this has 4 waveforms, optional delay and repeat count, and can go into the audible frequency range.

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.

Screenshots

Phase844 screens
Zeeon synth3 screens

Verdict

The call

The clearest difference is rating: Zeeon synth at 4.8 against Phase84's 3.8. Zeeon synth also leads on update cadence (every 2 months vs every 26 months) and review sentiment (76% vs 57%). Phase84's advantage is in-app purchases (none vs 3) and price ($12.99 vs $14.99). On ads 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

Phase84 costs $12.99 and Zeeon synth $14.99 up front. Zeeon synth sells 3 one-off in-app purchases. Phase84 asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Zeeon synth holds the better App Store score, 4.8 against 3.8. That said, the two scores are not equally well evidenced: Zeeon synth has 209 ratings behind it against 41, so its average is the more settled of the two. Written reviews point the same way: 57% of Phase84's written reviews are positive against 76% of Zeeon synth's.

UpkeepUpdate frequency

Phase84 ships an update every 26 months, Zeeon synth every 2 months. The most recent releases landed on October 7, 2026 and October 12, 2026 respectively.

Scorecard8 real differences · 2 level
Phase84 versus Zeeon synth: the parameters behind the verdict, then further details
ParameterPhase84Zeeon synth
Price$12.99 — better$14.99
Rating3.8 (41 ratings)4.8 (209 ratings) — better
Positive reviews56.5% of reviews75.9% of reviews — better
Number of ratings41209 — better
Update frequencyEvery 26 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS9.0 — better15.6
Further details — not scored
Size33 MB27 MB
Age rating4+4+
DeveloperRetronyms IncBeepStreet

Customer experience

Phase84

All ratings41 ratings
Positive63.4%
Neutral12.2%
Negative24.4%
Written reviews46 reviews
Positive56.5%
Neutral15.2%
Negative28.3%

Zeeon synth

All ratings209 ratings
Positive93.8%
Neutral2.4%
Negative3.8%
Written reviews166 reviews
Positive75.9%
Neutral7.2%
Negative16.9%

Bugs and requests

Phase84

Not enough reviews yet to summarise bugs or 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

In-app purchases

None

Phase84

No in-app purchases

3 purchases

Zeeon synth

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

Questions

Is Phase84 free?
Phase84 costs $12.99, with no in-app purchases.
Is Zeeon synth free?
Zeeon synth costs $14.99, and also offers in-app purchases.
Which has better reviews, Phase84 or Zeeon synth?
Zeeon synth is rated higher. Phase84 averages 3.8 out of 5 from 41 ratings, while Zeeon synth averages 4.8 from 209 ratings.
Do Phase84 or Zeeon synth have ads?
Neither Phase84 nor Zeeon synth shows ads.
Which is updated more often, Phase84 or Zeeon synth?
Phase84 ships an update every 26 months, and Zeeon synth every 2 months. Most recently, Phase84 was updated on October 7, 2026 and Zeeon synth on October 12, 2026.

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