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Möbius Sync vs Syncthing: catalog facts
Möbius Sync	Syncthing
Freemium Distributed through the App Store; check the store listing for current pricing.	Free Free software; the Syncthing Foundation is funded by donations. There is no storage cost…
iOS	Windows, macOS, Linux, Command line, Self-hosted
Brings Syncthing sync to iPhone and iPad Works with Syncthing on Windows, macOS, Linux and Android	No central server: none of your data is stored anywhere except on your own computers All traffic is TLS encrypted with perfect forward secrecy, and every device is authenticated by certificate
iOS only Third-party app, not part of the official Syncthing project	The official Android app was archived in December 2024; Android users rely on a community fork Both devices must be online at the same time for changes to move
Downloadable app	Downloadable app, Self-hosted
Closed source	Open source
License not stated	License: MPL-2.0
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 September 23, 2026	Official website Full listing and sources Checked September 20, 2026

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