Compare software

Clean Email vs Inbox Zero: catalog facts
Clean Email	Inbox Zero
Freemium Can be tried for free, with paid plans listed on the site.	Freemium Free to start, with paid and sales-led plans for more use.
Android, iOS, Web	Web
Bulk actions on grouped messages Smart folders and cleaning suggestions	Automatic labelling and pre-drafted replies Bulk unsubscribe and cold email blocking
Requires granting a third-party service access to your mailbox Full use requires a paid plan	Supports Google and Microsoft accounts only Mobile apps are not yet available
Downloadable app, Web application, Hosted service	Web application, Hosted service
Closed source	Open source
License not stated	License not stated
Account needed	Account needed
Needs internet	Needs internet
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked October 1, 2026

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