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DeltaWalker vs Meld for macOS: catalog facts
DeltaWalker	Meld for macOS
Paid Commercial software with licences and upgrades sold through its store; a trial is offered.	Free Free and open source under the GPL-2.0-or-later.
macOS	macOS
Three-way comparison and synchronization for files and folders Compares Office, PDF, archives, XML and images	Native macOS packaging of a familiar diff tool Side-by-side comparison and merging
Paid licence required Version 3 is still a release candidate	A community port maintained separately from Meld itself macOS only; other platforms use the main Meld builds
Downloadable app	Downloadable app
Closed source	Open source
License not stated	License: GPL-2.0-or-later
Not stated if an account is needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked October 1, 2026

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