Comparison

REVE Model 1 vs Emperor PolySynth

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

Head to head
About

REVE Model 1

Features
Read full description

The REVE Model 1 is an ambient drone soundscape machine, built around a synth and echo machine that turns a single note into a slowly evolving world. Play a single note or chord, arpegiatte it, and wait as a simple phrase unfolds into a dark cinematic drone, a meditative texture for sound bathing, or something stranger you didn't plan on. Push the echo repeats toward infinite, and let it rip. Want to hear REVE Model 1 before purchasing? Try the lite version at http://revemodel1.davebokil.com/ FULL ANALOG-STYLE SYNTH ENGINE VCO — Range switch (16', 8', 4', 2'), Tune, Pulse Width, and a Manual/Envelope PWM source switch. Source Mixer — independent levels for Saw, Pulse, Sub, and Noise, plus a switchable sub-oscillator mode (−1 octave square, −2 octave square, −2 octave pulse). Filter — 20Hz–20kHz cutoff and Resonance, Envelope amount, Key Follow, and a dedicated Filter LFO. Envelope + VCA — full ADSR, with a VCA mode switch for Envelope or Gate. LFO — Triangle, Square, Sample & Hold, or Noise waveforms, with Rate, Depth, and a to-pitch routing toggle. Arpeggiator — Off/Up/Down/Up-Down modes, 1–4 octave range, adjustable rate, and Hold (latch). THE ECHO — THE HEART OF THE INSTRUMENT Delay/looping built to be played, not just heard: Repeat (feedback) that goes all the way to infinite sustain, delay time up to 4 seconds, and independent volume control. Push it toward infinite and a phrase stops being a phrase: it becomes a drone, a drift, a texture that keeps changing while your hands are free to reshape it. An output limiter with Threshold, Ceiling, and a gain-reduction meter — keeps things from clipping as the repeats stack up, no matter how far into the red you push it. PLAY IT LIKE AN INSTRUMENT A touch keyboard with real glissando — slide across keys instead of just tapping them — adjustable visible octave range and key span, and a Hold/latch mode so a note can ring on its own while both hands stay on the knobs. A pitch bend lever has independent VCO/VCF sensitivity, and portamento (glide) time is adjustable. PRIVATE BY DESIGN No ads, no analytics, no network access, no accounts, no in-app purchases. Everything happens on your phone, nowhere else. COMING SOON MIDI and AUv3 Support

About

Emperor PolySynth

Create evolving soundscapes, sequences, and leads with a powerful synthesizer offering multiple synthesis types and a modular patch bay. Explore a vast array of effects and expressive performance features for both standalone and AUv3 use.

Highlights
  • Dual-layer synthesis engine
  • Modular patch bay
  • Multiple synthesis types (VA, Wavetable, FM, Additive, PD)
  • Extensive effects suite
  • Arpeggiator and sequencer
  • MPE support for expressive control
  • AUv3 instrument compatibility
Features
Read full description

An instrument for sounds that keep unfolding. EMPEROR brings cinematic depth and expressive synthesis to iPhone and iPad. Build evolving pads, hypnotic sequences, powerful basses and responsive leads with two independent layers, a modular patch bay and a tactile 3D interface. Start with 287 factory presets, follow the guided tour, or build a sound from the ground up. Play standalone or use EMPEROR as an AUv3 instrument in a compatible host. TWO LAYERS. FIVE WAYS TO CREATE. Combine virtual analog, wavetable, FM, additive and phase distortion synthesis. Each layer has two main oscillators, a sub-oscillator and noise. Stack both layers or split them across the keyboard, learn the split point from a played note and assign morph to a controller. Shape FM with 2–6 operators, eight algorithms, feedback, fixed frequencies or harmonic ratios, and individual operator envelopes. Play with up to 16 voices, mono and legato modes, plus three-voice unison. FILTERS WITH CHARACTER Two filters per layer offer state-variable, transistor ladder, diode-inspired, comb and formant circuits, with serial or parallel routing. PATCH MOVEMENT INTO EVERY SOUND Connect assignable sources and destinations through a 16-slot modulation matrix with interactive cables. Modulate synthesis and effect parameters. Each layer has a per-voice LFO and a global LFO, with classic shapes, sample & hold, smooth random and custom stepped waveforms. Sync, Retrigger and Follow Swing keep movement under your control. EXPRESSION, NOTE BY NOTE MPE support adds per-note pressure, slide and pitch bend, alongside velocity, release velocity and mod wheel. Explore expressive factory patches with a compatible MPE controller, or play directly from the onscreen keyboard. RHYTHM THAT EVOLVES An arpeggiator with six modes and up to four octaves meets a sequencer with up to 32 steps. Record step by step or in real time, then shape velocity, gate, probability, ratchets, ties, scales and playback direction. HOLD supports sustained playing and pattern performance. THREE EFFECTS. ENDLESS ATMOSPHERE. Choose from 22 algorithms and place any effect in any of three slots. Explore chorus, ensemble, flanger, phaser, rotary, tremolo, ring modulation, stereo, tape and BBD delays, multitap, reverse and pitch-shifted echoes, Hall, Plate, Room, Shimmer and Dream Cloud reverbs, cassette lo-fi, bitcrushing, saturation and a tuned resonator. OPEN THE CHASSIS The Tweaks view reveals the circuitry beneath the panel. Adjust vintage tolerance, component wear and power-supply sag, then save that character with your preset. AN INSTRUMENT YOU CAN EXPLORE Animated section views bring knobs, sliders, interactive displays and patch cables into focus. Browse factory sounds by category and save, recall or delete your own USER presets. AUv3 use requires a compatible host app. Per-note MPE performance requires a compatible MPE controller or MIDI source. Neither is required for standalone playing. ### Whats New EMPEROR arrives on iPhone and iPad with standalone and AUv3 operation, five synthesis engines, two layers, MPE, modular modulation, 22 effects and 287 factory presets.

Screenshots

REVE Model 13 screens
Emperor PolySynth4 screens

Verdict

The call

The clearest difference is price: REVE Model 1 at $4.99 against Emperor PolySynth's $29.99. Emperor PolySynth's advantage is iOS requirement (15.0 vs 17.0). On ads, in-app purchases 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

REVE Model 1 costs $4.99 and Emperor PolySynth $29.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Scorecard2 real differences · 7 level
REVE Model 1 versus Emperor PolySynth: the parameters behind the verdict, then further details
ParameterREVE Model 1Emperor PolySynth
Price$4.99 — better$29.99
Rating—5.0 (2 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—2 — better
AdsNoNo
In-app purchasesNoNo
Monetization—Paid
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.015.0 — better
Further details — not scored
Size3 MB61 MB
Age rating4+4+
DeveloperDavid BokilMike Gazzaruso

In-app purchases

None

REVE Model 1

No in-app purchases

None

Emperor PolySynth

No in-app purchases

Questions

Is REVE Model 1 free?
REVE Model 1 costs $4.99, with no in-app purchases.
Is Emperor PolySynth free?
Emperor PolySynth costs $29.99, with no in-app purchases.
Do REVE Model 1 or Emperor PolySynth have ads?
Neither REVE Model 1 nor Emperor PolySynth shows ads.

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