Download CYNC
One installer. Service + Admin UI. Free for up to 10 users - no credit card, no time limit.
Windows x64 · Offline installer · ~80 MB
What's included
- CYNC Service - background Windows service that runs the sync engine
- CYNC Admin UI - WinUI 3 dashboard for configuration, target users, and sync history
- One-click installer - installs both components with all prerequisites in under a minute
- Built-in updater - check for and install updates directly from the dashboard
- Free tier - fully functional for up to 10 target users, no license required
System requirements
| Operating System | Windows 10 1809+ or Windows Server 2019+ (x64) |
| Runtime | .NET 10 - bundled in the installer |
| Network | HTTPS access to Microsoft Graph API |
| Entra ID | App registration with User.Read.All, Group.Read.All, Contacts.ReadWrite |
| Disk space | < 100 MB installed |
Quick start
- 1
Run the installer
Double-click Cync.Setup.exe. The installer handles prerequisites, registers the Windows service, and installs the admin UI.
- 2
Register an Entra ID app
Follow the Entra ID setup guide to create an app registration with the required permissions.
- 3
Configure & sync
Open the CYNC admin UI, enter your Tenant ID and app credentials, select target users, and run your first sync.
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