Sylenth1

Name: Sylenth1
Price: 9.95 EUR

Windows · Mac · paid plans from €9.95/mo

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Freedom report

No signalScore 4.9

Free tierNo free tier on record
Open codeNo open-source code on record
Runs widely2 of 6 device platforms
DocumentedThinly documented

Sylenth1 is ranked #30 of 34 in software synthesizers on Freedom251. It runs on macOS, Windows. There is no free plan. A free trial is offered. Paid plans start at €9.95/mo.

Sylenth1 plans and pricing

All plans

Sylenth1 installment plan €9.95/mo Monthly installments until the full amount has been reached License is put on hold while payments are stopped · internet connection required at least once each month · keep full license after all installments are paid lennardigital.com · 9 Oct 2026

Sylenth1 full version €139 once One-time payment VST/AU/AAX, x86/x64 · 2 computer activations · full functionality · 2500+ presets · free updates lennardigital.com · 9 Oct 2026

Compared on software synthesizers

Free plan: No
Synthesis engine: analog_modeling
Plugin formats: VST, VST3, AU, AAX
Standalone app: No
Supported platforms: windows_macos
Included presets: 2,500 presets

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The record

Product: Sylenth1 is a virtual analog VSTi synthesizer designed for music production.
Oscillators: It has four unison oscillators, each capable of eight stereo voices, for up to 32 voices per note.
Polyphony: Its 16-note polyphony allows up to 512 oscillator voices simultaneously.
Filters: It includes two four-stage filter sections with nonlinear saturation and drive control.
Modulation: The product page lists two ADSR envelopes, two LFOs, two additional amplitude envelopes, and modulation sources including velocity, keyboard track, and modulation wheel.
Effects: Its master section includes an arpeggiator and distortion, phaser, chorus/flanger, equalizer, delay, reverb, and compressor effects.
Presets and MIDI: The specifications page lists 2500+ presets, an onboard preset browser, and MIDI control with MIDI learn for assigning CCs or RPN/NRPNs.
Formats and hosts: Sylenth1 supports VSTi, AU, and AAX compatible host software.
Operating systems: The listed requirements are Windows 7/8/10/11 (32/64-bit) or macOS 10.9 or higher on ARM or Intel.
Demo limits: The demo plays a reminder sample about every 60 seconds, disables half the modulation options and preset saving/export, and is limited to 128 presets and one skin.
Activation limit: Sylenth1 can be installed and used on two computers at the same time, and can be used on Mac and PC.
Offline activation: The license FAQ says Sylenth1 can be activated on a computer without internet and links to instructions.
Support: The support page directs users to the manual and provides a support request subject selector and a link to the LennarDigital forum.
Maker: LennarDigital says it is based in Vught, the Netherlands, and was founded in 2006 by DSP and software engineer, producer, and sound designer Lennard Addink.
Price from: €9.95/mo

Where it ranks on Freedom251

Best Software Synthesizers in 2026#30 of 34

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Sources

lennardigital.com/sylenth1/· checked 9 Oct 2026
lennardigital.com/sylenth1/specs.php· checked 9 Oct 2026
lennardigital.com/downloads/· checked 9 Oct 2026
lennardigital.com/support/license.php· checked 9 Oct 2026
lennardigital.com/support/· checked 9 Oct 2026
lennardigital.com/about/· checked 9 Oct 2026
lennardigital.com/store/index.php· checked 9 Oct 2026