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PhotoSync vs Proton Drive: catalog facts
PhotoSync	Proton Drive
Freemium The desktop Companion tool is free; the mobile apps offer paid features.	Freemium A free account is available, with paid plans for more storage and a separate business…
Windows, macOS, Linux, Android, iOS	Android, iOS, Web
Transfers in full resolution with metadata intact Works over local Wi-Fi without a cloud	End-to-end encryption that the provider cannot read Automatic photo and video backup from mobile
Closed source Pricing of the mobile apps not clearly stated on the homepage	Requires a Proton account Free tier storage is limited
Downloadable app	Downloadable app, Web application, Hosted service
Closed source	Closed source
License not stated	License not stated
Not stated if an account is needed	Account needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 23, 2026

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