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SmartSynchronize vs DiffMerge: catalog facts
SmartSynchronize	DiffMerge
Paid Prices are not listed on the product page; licensing details are on the syntevo site.	Free Free to use under SourceGear's freeware license.
Windows, macOS, Linux	Windows, macOS, Linux
Editable file compare with inner-line change detection 3-way merge with all three files editable	Two-way diff and three-way merge with editable panes Side-by-side folder comparison
Pricing is not shown on the product page Focused on text files and project trees rather than general backup	Closed source freeware Infrequent updates
Downloadable app	Downloadable app
Closed source	Closed source
License not stated	License: Freeware
Not stated if an account is needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked October 2, 2026

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