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HoudahGeo vs Photini: catalog facts
HoudahGeo	Photini
Paid Paid app with a free trial.	Free Free and open source.
macOS	Windows, macOS, Linux
Several geotagging methods: GPX tracks, reference photos and maps Writes coordinates into the files themselves	Edits Exif, IPTC and XMP metadata Runs on Linux, Windows and macOS
Mac only Paid after the trial	Focused on metadata only, with no image editing Small developer team
Downloadable app	Downloadable app
Closed source	Open source
License not stated	License not stated
Not stated if an account is needed	No account needed
Not stated if it 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.