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Microsoft Outlook for iOS and Android vs Nine: catalog facts
Microsoft Outlook for iOS and Android	Nine
Freemium The app is a free download; Microsoft 365 plans are sold separately.	Paid Pricing is not listed on the homepage; check the store listing for current terms.
Android, iOS	Android, iOS
Email, calendar and contacts in one app Available on both iOS and Android phones and tablets	Direct Push sync with Exchange ActiveSync servers Mail, calendar, contacts, tasks and notes in one app
Closed source Closely tied to Microsoft's services and plans	IMAP accounts sync email only Pricing not stated on the homepage
Downloadable app	Downloadable app
Closed source	Closed source
License not stated	License not stated
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 23, 2026

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