Sponsor Zync

Zync is free, open-source, and always will be. Sponsoring helps cover the cost of code signing certificates so Windows and macOS users never see a security warning.

Sponsor on GitHub

Where the money goes

100% of sponsorship funds go toward maintaining the yearly code signing certificates. Once funded, every release ships fully signed — no warnings, no workarounds needed.

macOS$99 / year

Apple Developer Certificate

Required to notarize Zync for macOS. Without it, Gatekeeper blocks the app with a "damaged" warning on every install.

Windows$200–400 / year

Microsoft EV Code Signing

Required to prevent Windows SmartScreen from blocking the installer. EV certificates take time to build reputation but fully eliminate the warning.

What sponsors get

No more SmartScreen or Gatekeeper warnings for every Windows and macOS user

Your name or org listed in the README and release notes as a sponsor

Help keep Zync free and open-source for everyone

Current status

Zync is currently unsigned. The app is safe to use — you can follow the bypass instructions in the installation guide — but signing removes the friction entirely.

macOS — Gatekeeper shows “Zync is damaged and can’t be opened” or “from an unidentified developer” on first launch.
Windows — SmartScreen shows “Windows protected your PC” when running the installer.

Even a one-time contribution helps. Thank you for supporting open-source software.

Sponsor on GitHub