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No-IP vs ddclient: catalog facts
No-IP	ddclient
Freemium Free dynamic DNS hostnames; managed DNS, domains, SSL and Enhanced plans are paid.	Free The open-source software is available without a license fee. Hosting, hardware and…
Web	macOS, Linux, Command line
Free hostnames on many shared domains Downloadable update client	Supports numerous DNS providers through one configuration.
Useful extras are in paid plans The site pushes upgrades and promotions	Requires a supported provider and its update credentials.
Downloadable app, Hosted service	Downloadable app
Closed source	Open source
License not stated	License: GPL-2.0
Account needed	Not stated if an account is needed
Needs internet	Not stated if it works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 22, 2026

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