LogSynth
Virtual Analog Synth & AUv3
17,99 € · Designed for iPad. Not verified for macOS.
A polyphonic virtual-analog synth with a physically modeled diode drive filter, 41 hand-tuned presets, and a full AUv3 plugin for the host of your choice.
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 — 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 — no watered-down mobile version, no feature gating between standalone and plugin modes.
Ratings & Reviews
- This app has not received enough ratings or reviews to display an overview.
Performance and stability improvements.
The developer, SEAN IAN HALENWOOD, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Size
- 22.7 MB
- Category
- Music
- Compatibility
Requires iOS 18.0 or later.
- iPhone
Requires iOS 18.0 or later. - iPad
Requires iPadOS 18.0 or later. - Mac
Requires macOS 15.0 or later and a Mac with Apple M1 chip or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Provider
SEAN IAN HALENWOOD
- SEAN IAN HALENWOOD has identified itself as a trader for this app and confirmed that this product or service complies with European Union law.
- Address
8268 Cypress Wood Drive
Colorado Springs Colorado 80927
United States - Phone Number
+1 8053694575 - Email
seanhaywoodsb@gmail.com
- Copyright
- © Sean Halenwood 2026

