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Photini vs HoudahGeo: catalog facts
Photini	HoudahGeo
Free Free and open source.	Paid Paid app with a free trial.
Windows, macOS, Linux	macOS
Edits Exif, IPTC and XMP metadata Runs on Linux, Windows and macOS	Several geotagging methods: GPX tracks, reference photos and maps Writes coordinates into the files themselves
Focused on metadata only, with no image editing Small developer team	Mac only Paid after the trial
Downloadable app	Downloadable app
Open source	Closed source
License not stated	License not stated
No account needed	Not stated if an account is needed
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 October 1, 2026

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