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Sushitrain vs Möbius Sync: catalog facts
Sushitrain	Möbius Sync
Free Open source under the MPL-2.0 licence and distributed through the App Store.	Freemium Distributed through the App Store; check the store listing for current pricing.
macOS, iOS	iOS
Selective sync of individual files and subfolders On-demand access to files on other devices without a VPN	Brings Syncthing sync to iPhone and iPad Works with Syncthing on Windows, macOS, Linux and Android
Background sync is limited by what iOS allows Apple platforms only	iOS only Third-party app, not part of the official Syncthing project
Downloadable app	Downloadable app
Open source	Closed source
License: MPL-2.0	License not stated
No account 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 23, 2026

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