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HoudahGeo vs Lyn: catalog facts
HoudahGeo	Lyn
Paid Paid app with a free trial.	Paid Paid app with a fully featured 15-day free trial.
macOS	macOS
Several geotagging methods: GPX tracks, reference photos and maps Writes coordinates into the files themselves	Reads RAW, HDR and all formats macOS supports Non-destructive editing with curves and levels
Mac only Paid after the trial	macOS only Paid after the 15-day trial
Downloadable app	Downloadable app
Closed source	Closed source
License not stated	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 October 1, 2026	Official website Full listing and sources Checked September 24, 2026

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