Hillman Synth vs Phase Monkey
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Hillman Synth
This app emulates vintage combo-organs and string machines with analog-inspired sound generation. It offers four selectable waveforms per note, adjustable octaves, and built-in ensemble, phaser, and reverb effects for rich soundscapes.
- Analog-inspired sound generation
- 4 selectable waveforms per note
- Adjustable octave offset
- Ensemble chorus effect
- 4-pole phaser effect
- Lush reverb effect
Read full descriptionHide full description
Hillman is a synthlike instrument inspired by old combo-organs, string machines and similar vintage gear. 4 voices per note, each with selectable waveform (transistorish, tubeish, sine and special plasma), octave switch and a level control. Sounds are generated with an analog approach, but does not use samples or sampled wavetables. --- User interface --- Voices Level - Level control. Type - Select between Transistor, Tube, Sine-wave or a special plasma oscillator. Octave - Octave offset for each note voice. (-1 to +2). --- ADSR Envelope controls --- FXs Ensemble - A classic ensemble chorus with 3 different modes Phaser - 4 pole phaser with 2 different modes with different frequency ranges and notch depths. Reverb - Lush reverb which ranges from small room to churchlike halls. Output level - Overall level control --- Full documentation available inside the app or at https://klevgrand.se/downloads/hillman-docs/
Phase Monkey
Explore a versatile digital synthesizer inspired by 1980s phase distortion technology. Create a wide range of sounds from warm pads to aggressive basses with its unique engine and eight-stage envelopes. Optimized for touch interaction, it also supports MIDI controllers and runs across Apple devices.
- Phase distortion synth engine
- Eight-stage envelopes
- Touch-first interface
- AUv3 plugin support
- Universal Apple purchase
- MIDI controller support
- iCloud preset syncing
Read full descriptionHide full description
Phase Monkey is a polyphonic synthesizer inspired by the classic phase distortion synthesizers of the mid-1980s. However, instead of being a direct copy, Phase Monkey presents a fresh take on the classic sound engine, including the rare eight-stage envelopes. The result is a surprisingly versatile digital instrument that can produce anything from warm pads to shimmering leads to snarling basses. Whatever you do, don’t have fun with it! Features: - Focused, fun, and characterful synth engine - Touch-first design, almost the entire screen is part of a control - Runs standalone or as AUv3 plug-in (in compatible host) - Universal purchase on Apple platforms: runs on iPhone, iPad, and Mac - Presets synced across your devices via iCloud - Hook up a MIDI controller to play with a keyboard (optional) Details: - Eight classic phase distortion waveforms - Dedicated modulation oscillator for ring or noise modulation - Three rare eight-stage envelopes - Complex modulation of pitch and timbre possible via envelopes - LFO with five waveforms for classic modulation sounds - Master controls: portamento, random voice pan, onboard chorus, gain - Key behavior modes: poly, monophonic retrig, monophonic legato - Additional MIDI modulation sources: mod wheel, pitch bend, velocity, aftertouch (channel), key follow - Includes 40 highly usable factory presets to get you started making music Check out our YouTube: https://www.youtube.com/@sketchaudio Read the manuals: https://sketchaudio.com/manuals/
Screenshots
Verdict
The clearest difference is update cadence: Phase Monkey at weekly against Hillman Synth's every 17 months. Phase Monkey also leads on rating (4.8 vs 4.4) and price ($5.99 vs $10.99). Hillman Synth's advantage is iOS requirement (13.0 vs 15.0). On review sentiment, ratings volume, ads and in-app purchases 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
Hillman Synth costs $10.99 and Phase Monkey $5.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Phase Monkey holds the better App Store score, 4.8 against 4.4. Both are backed by a comparable volume of ratings — 18 and 17 respectively. Written reviews complicate that: 75% of Hillman Synth's written reviews are positive against 71% of Phase Monkey's, so the app with the better star average is not the one people write more warmly about.
Hillman Synth ships an update every 17 months, Phase Monkey weekly. The most recent releases landed on September 8, 2026 and July 16, 2026 respectively.
| Parameter | Hillman Synth | Phase Monkey |
|---|---|---|
| Price | $10.99 | $5.99 — better |
| Rating | 4.4 (18 ratings) | 4.8 (17 ratings) — better |
| Positive reviews | 75.0% of reviews — better | 71.4% of reviews |
| Number of ratings | 18 — better | 17 |
| Update frequency | Every 17 months | Weekly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPad | iPhone, iPad, iPod, Mac — better |
| Requires iOS | 13.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 7 MB | 15 MB |
| Age rating | 4+ | 4+ |
| Developer | Klevgrand Produkter AB | Sketch Audio, LLC |
Customer experience
Hillman Synth
Phase Monkey
In-app purchases
Hillman Synth
No in-app purchases
Phase Monkey
No in-app purchases







