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GMX Mail vs iCloud Mail: catalog facts
GMX Mail	iCloud Mail
Free Free, supported by advertising and sponsored content.	Freemium Free with an Apple Account, with more storage on paid iCloud+ plans.
Web	macOS, iOS, Web
Up to 10 addresses on one free account Mail collector for other email accounts	Built into Apple devices Web client for use on any computer
Web portal shows sponsored news and ads Hosted service, so you rely on the provider for your mail	Requires an Apple Account Best experience is on Apple hardware
Web application, Hosted service	Web application, Hosted service
Closed source	Closed source
License not stated	License not stated
Account needed	Account needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 24, 2026	Official website Full listing and sources Checked September 24, 2026

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