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Nextcloud vs Möbius Sync: catalog facts
Nextcloud	Möbius Sync
Freemium The server and clients are free and open source. Nextcloud GmbH sells enterprise support…	Freemium Distributed through the App Store; check the store listing for current pricing.
Windows, macOS, Linux, Android, iOS, Self-hosted, Web	iOS
Your storage limit is your own disk, and your data never leaves it Desktop client supports virtual files, so a big library costs no local space	Brings Syncthing sync to iPhone and iPad Works with Syncthing on Windows, macOS, Linux and Android
You run the server, which means updates, backups and certificates are yours Major version upgrades are known for needing careful reading	iOS only Third-party app, not part of the official Syncthing project
Self-hosted, Downloadable app	Downloadable app
Open source	Closed source
License: GPL-2.0	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 September 21, 2026	Official website Full listing and sources Checked September 23, 2026

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