VAPolyMk5 vs LogSynth
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
VAPolyMk5
This is a powerful bitimbral polyphonic synthesizer with a re-designed step sequencer. It offers advanced oscillator features, a cascaded OTA low-pass filter, and extensive modulation capabilities. Operate it as a standalone app or an AudioUnit Extension.
- Bitimbral polyphonic synthesis
- Re-designed step sequencer
- Hard sync and through zero FM oscillators
- Cascaded OTA low-pass filter
- AudioUnit Extension (AUv3) support
- Ableton Link and MIDI 2.0 support
- Built-in effects suite
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VAPolyMk5 is bitimbral polyphonic synthesizer. Main feature of Mk5 is re-designed step sequencer which contains one note sequencer and three modulation sequencers. Oscillator feature hard sync and through zero FM. Low pass Filter is modeled on cascaded OTA -24dB per octave low pass filter circuit. Each synthesizer consists of three oscillators, resonant low pass and high pass filter, amplifier, three envelope generators, two LFO and key tracking. Two synthesizers can be configured as layer or split. Mk5 also features global LFO, output morphing, classic ring modulator and easy target assignment for mod wheel and aftertouch. VAPolyMk5 operates as a stand alone or as an AudioUnit Extension (AUv3) for iPhone, iPad and Mac. Stand Alone supports Ableton Link, MIDI and audio file export. Built-in Effects include delay, chorus, flanger, reverb, eq and compressor. Project files can be saved in iCloud Drive, so that the project can be accessed from iPhone, iPad or Mac. Main Features Bi-timbral Polyphonic Synthesizer Oscillators feature hard sync and through zero FM. Low pass Filter is modeled on cascaded OTA -24dB per octave low pass filter circuit. Re-designed step sequencer Re-designed offset control Improved output morphing. Improved classic ring modulator. Improved key tracking Easy target assignment for mod wheel and aftertouch Maximum 8 voice polyphony. it depends on performance of the device it is running. Built-in effects and piano roll sequencer. Audio Export. Linear PCM format (AIFF, WAV and CAF) and compressed format (AAC) Support Audio Unit Extension (AUv3). Support MIDI 2.0. Support Foot Pedal and Per Note Control. Support Ableton Link, Bluetooth MIDI, MIDI In / Out. Works on iPhone, iPad and Mac. Support iCloud Drive to share project files between the platforms. General Improvements Support MIDI Foot Pedal (CC#11, CC#64) Support MIDI2.0 Per Note Control Messages MIDI CC Settings are saved. It will be recovered when the app launched in the next time. UI Color can be selected from black, navy, gray or blown. Adjustable text size for title of controls Factory Preset 208 Synth CH Preset 256 Effect Preset 40 Default & Macro 8 System Requirements iOS 17.0 or later macOS 14.0 or later Devices with Apple Silicon are recommended. A13 Fusion or above is highly recommended. AudioUnit Extension (AUv3) requires host application which support AudioUnit Extension. AudioUnit Extension is supported by Apple Logic and Apple Garage Band on iOS and macOS. For any other DAW, it depends on the application and some of them donβt support AudioUnit Extension. Sound may be distorted if CPU of the device doesn't have enough power. If it happens reduce number of voices or enable Low Power Mode in setting panel. App launches in Low Power Mode in the first time on device with iOS earlier than iOS 18.0 as mono-timbral.
LogSynth
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LogSynth is a polyphonic virtual-analog synthesizer built for people who care what's actually happening in the signal path, not just what the preset browser looks like. Every voice runs five anti-aliased oscillators (sine, triangle, saw, pulse with PWM, and a band-limited impulse train) plus a dedicated sub-oscillator and noise source, mixed per-voice with independent amp envelopes. Chunky oscillators, crisp effects and a zero-delay-feedback state-variable filter β switchable low/high/bandpass. The drive effect is powered by a physically modeled diode circuit, numerically integrated rather than a lookup-table approximation, so pushing it into saturation behaves the way an actual analog drive would. FEATURES - 8-voice polyphony, 5 oscillators + sub + noise per voice - Zero-delay-feedback state-variable filter with resonant feedback and diode drive saturation - 5 independent oscillator envelopes plus a dedicated filter envelope - 2 assignable LFOs and an 8-slot modulation matrix - Built-in chorus, delay, FDN reverb, and 4-mode distortion - 41 factory presets across Bass, Lead, Pluck, and Effects - One-tap patch randomizer with adjustable intensity - Real-time oscilloscope, on-screen keyboard, and CoreMIDI input - Runs standalone or as an AUv3 instrument inside AU hosts Whether you're sound designing from scratch or dropping it into a DAW as a plugin, Logsynth gives you the same engine everywhere β no watered-down mobile version, no feature gating between standalone and plugin modes.
Screenshots
Verdict
The clearest difference is update cadence: LogSynth at every 4 days against VAPolyMk5's weekly. VAPolyMk5's advantage is iOS requirement (16.6 vs 18.0). On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
VAPolyMk5 costs $14.99 and LogSynth $14.99 up front. Neither carries in-app purchases, so what you see is what you pay.
VAPolyMk5 ships an update weekly, LogSynth every 4 days. The most recent releases landed on September 19, 2026 and September 24, 2026 respectively.
| Parameter | VAPolyMk5 | LogSynth |
|---|---|---|
| Price | $14.99 | $14.99 |
| Positive reviews | 100.0% of reviews | β |
| Update frequency | Weekly | Every 4 days β better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | β |
| Devices | iPhone, iPad, Mac β better | iPhone, iPad |
| Requires iOS | 16.6 β better | 18.0 |
| Further details β not scored | ||
| Size | 21 MB | 22 MB |
| Age rating | 4+ | 4+ |
| Developer | Ryo Togawa | SEAN IAN HALENWOOD |
In-app purchases
VAPolyMk5
No in-app purchases
LogSynth
No in-app purchases









