Best Office 365 Outlook Apps

248+ iOS apps curated and reviewed

4.3 avg rating
18 free apps
Updated November 2026

Finding the right office 365 outlook apps can be overwhelming with so many options. We've analyzed 248+ apps to bring you the best choices for 2026, from free options to premium solutions with advanced features.

Compare top Office 365 Outlook Apps (November 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Microsoft OutlookMicrosoft OutlookFree4.8★ (9.4M)YesYesNov 2026
2MailMailFree4.6★ (4.6M)NoNoNov 2026
3Mail App for Outlook 365Mail App for Outlook 365Free3.7★ (6)YesYesOct 2026
4Microsoft CopilotMicrosoft CopilotFree4.7★ (1.4M)YesYesNov 2026
5Microsoft 365 AdminMicrosoft 365 AdminFree4.6★ (5.8K)NoNoNov 2026
6ONLYOFFICE ProjectsONLYOFFICE ProjectsFree4.0★ (3)NoNoOct 2026
7Boxer - Workspace ONEBoxer - Workspace ONEFree4.4★ (77K)NoNoNov 2026
8Microsoft SharePointMicrosoft SharePointFree4.6★ (142K)NoNoNov 2026

Top Picks for Office 365 Outlook

Microsoft Outlook#1

Microsoft Outlook by Microsoft Corporation

Secure Email, Calendar & Files
Editor's Choice
📊 Productivity
4.8😐(9.4M ratings)
FreeAdsIn-App Purchases
#10in Productivity
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Manage all your email accounts and calendars in one place. Organize your inbox with smart sorting, quick swipe actions, and easy meeting scheduling. Seamlessly access and edit files from cloud storage and leverage AI assistance for email summarization and composition.

What We Love

  • 🚀 Great for corporate email
  • 👍 Customizable and user-friendly
  • 🚀 Seamless integration with Microsoft 365
  • 👍 Solid email and calendar functionality

Room to Improve

  • 🐛 Buggy and unstable at times
  • 🔋 High battery consumption
  • 🔒 Security issues with password resets
  • 👎 Limited file attachment options
Mail#2

Mail by Apple

Strong Contender
📊 Productivity
4.6😐(4.6M ratings)
Free
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Consolidate all your email accounts into a single, organized inbox. Prioritize important messages, quickly respond with smart replies, and manage your inbox efficiently with features like scheduling and snoozing. Enjoy enhanced privacy with IP address hiding and read receipt prevention.

What We Love

  • 🚀 Efficient email management
  • 🔒 Secure and private
  • 👍 Simple and intuitive interface
  • 💡 Useful categorization of emails

Room to Improve

  • 🐛 Inconsistent swipe gestures
  • 🐛 Unreliable search function
  • 🐛 Emails disappearing or not syncing properly
  • 🐛 Slow email download and loading times
  • 🐛 Buggy performance after updates
Mail App for Outlook 365#3

Mail App for Outlook 365 by ElevenThirteen LLC

Exchange express office email
Worth Considering
📊 Productivity
3.7(6 ratings)
FreeAdsIn-App Purchases
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Manage your office email efficiently with instant search, an intelligent inbox that prioritizes important messages, and quick filing options. This app supports Exchange and IMAP accounts, offering a streamlined experience for professionals.

More Office 365 Outlook apps to explore

FAQ about Office 365 Outlook

What are the best office 365 outlook apps for iPhone?
Microsoft Outlook tops our office 365 outlook apps ranking as of November 2026, with a 4.8-star average from 9.4M App Store ratings, and it's free to download.
Yes — 18 of the top office 365 outlook apps we rank are free to download, including Microsoft Outlook and Mail.
Microsoft Outlook shows ads and offers in-app purchases, according to its App Store listing as of November 2026.
We track 248+ office 365 outlook apps on the iOS App Store as of November 2026, ranked by rating, recency, and analysis of real user reviews.

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