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Nextcloud vs Resilio Sync: catalog facts
Nextcloud	Resilio Sync
Freemium The server and clients are free and open source. Nextcloud GmbH sells enterprise support…	Free Free for personal use. Business editions are paid.
Windows, macOS, Linux, Android, iOS, Self-hosted, Web	Windows, macOS, Linux, Android, 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	Files sync directly between your devices with no cloud storage involved Fast on a local network and works well with very large libraries
You run the server, which means updates, backups and certificates are yours Major version upgrades are known for needing careful reading	Closed source, so the protocol and crypto cannot be audited Both devices must be online at the same time to sync
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 22, 2026

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