Best Microsoft Office 365 Email Apps

248+ iOS apps curated and reviewed

4.5 avg rating
18 free apps
Updated November 2026

Looking for free microsoft office 365 email apps? 18 of our 248+ tracked titles are free to download — no subscription, no trial. The rest are premium picks worth paying for.

Compare top Microsoft Office 365 Email Apps (November 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Microsoft OutlookMicrosoft OutlookFree4.8★ (9.4M)YesYesNov 2026
2Mail App for Outlook 365Mail App for Outlook 365Free3.7★ (6)YesYesOct 2026
3Microsoft CopilotMicrosoft CopilotFree4.7★ (1.4M)YesYesNov 2026
4Microsoft 365 AdminMicrosoft 365 AdminFree4.6★ (5.8K)NoNoNov 2026
5MailMailFree4.6★ (4.6M)NoNoNov 2026
6Microsoft WordMicrosoft WordFree4.7★ (3M)NoYesNov 2026
7myMail box: email client appmyMail box: email client appFree4.4★ (18K)YesNoNov 2026
8Boxer - Workspace ONEBoxer - Workspace ONEFree4.4★ (77K)NoNoNov 2026

Top Picks for Microsoft Office 365 Email

Microsoft Outlook#1

Microsoft Outlook by Microsoft Corporation

Secure Email, Calendar & Files
Editor's Choice
📊 Productivity
4.8😐(9.4M ratings)
FreeAdsIn-App Purchases
#15in Productivity
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Consolidate all your email accounts and calendars into one streamlined application. Manage your inbox, schedule meetings, and access files effortlessly. Enhance your productivity with smart features and AI-powered assistance for writing and summarizing emails.

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 App for Outlook 365#2

Mail App for Outlook 365 by ElevenThirteen LLC

Exchange express office email
Strong Contender
📊 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.

Microsoft Copilot#3

Microsoft Copilot by Microsoft Corporation

AI-powered productivity
Worth Considering
📊 Productivity
4.7😐(1.4M ratings)
FreeAdsIn-App Purchases
#10in Productivity
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This AI-powered tool streamlines your work by assisting with content creation, project management, and information retrieval. It integrates with various Microsoft applications to help you generate documents, summarize data, and organize your tasks efficiently.

What We Love

  • 🚀 Seamless integration of Office apps
  • 🔒 Secure cloud storage with OneDrive
  • 👍 Convenient all-in-one productivity solution
  • 🚀 Great for on-the-go work and collaboration

Room to Improve

  • 🐛 Inconsistent file saving and syncing
  • 🔍 Confusing file management and navigation
  • 🔍 Limited functionality compared to desktop Office
  • 🐛 Frequent crashes and performance issues
  • 💰 Subscription-only model, no standalone option

More Microsoft Office 365 Email apps to explore

FAQ about Microsoft Office 365 Email

What are the best microsoft office 365 email apps for iPhone?
Microsoft Outlook tops our microsoft office 365 email 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 microsoft office 365 email apps we rank are free to download, including Microsoft Outlook and Mail App for Outlook 365.
Microsoft Outlook shows ads and offers in-app purchases, according to its App Store listing as of November 2026.
We track 248+ microsoft office 365 email apps on the iOS App Store as of November 2026, ranked by rating, recency, and analysis of real user reviews.