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Unison vs GoodSync: catalog facts
Unison	GoodSync
Free The open-source application is available without a license fee.	Paid A paid licence is required beyond a restricted free tier.
Windows, macOS, Linux	Windows, macOS, Linux, Android, iOS
Handles updates made independently on both replicas	Block-level transfer with versioning across a very wide set of back ends Jobs can trigger when a drive or device is connected
Conflicting edits may require a decision before synchronization.	Paid licence per user, with a restricted free tier Closed source
Downloadable app	Downloadable app
Open source	Closed source
License: GPL-3.0	License not stated
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked September 22, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.