Best Microsoft Office 365 Outlook Apps

244+ iOS apps curated and reviewed

4.5 avg rating
17 free apps
Updated October 2026

With an average user rating of 4.5★, the microsoft office 365 outlook category is one of the App Store's strongest. Browse all 244+ apps we track, sorted so the most loved ones surface first.

Compare top Microsoft Office 365 Outlook Apps (October 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Microsoft OutlookMicrosoft OutlookFree4.8★ (9.4M)YesYesNov 2026
2Microsoft CopilotMicrosoft CopilotFree4.7★ (1.4M)YesYesNov 2026
3Microsoft 365 AdminMicrosoft 365 AdminFree4.6★ (5.8K)NoNoOct 2026
4Mail App for Outlook 365Mail App for Outlook 365Free3.7★ (6)YesYesOct 2026
5MailMailFree4.6★ (4.5M)NoNoNov 2026
6Document Editor—Docs,SheetsDocument Editor—Docs,SheetsFree4.4★ (304)NoYesOct 2026
7Boxer - Workspace ONEBoxer - Workspace ONEFree4.4★ (77K)NoNoNov 2026
8Microsoft OneDriveMicrosoft OneDriveFree4.7★ (488K)NoYesNov 2026

Top Picks for Microsoft 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
#12in 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
Microsoft Copilot#2

Microsoft Copilot by Microsoft Corporation

AI-powered productivity
Strong Contender
📊 Productivity
4.7😐(1.4M ratings)
FreeAdsIn-App Purchases
#9in Productivity
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This AI-powered app helps you be more productive at work. Chat with an AI assistant to create content, manage projects, find files, and learn new concepts. It offers voice interaction and expert insights for various tasks.

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
4.6😊(5.8K ratings)
Free
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Manage your Microsoft 365 or Office 365 business subscription from your mobile device. Add users, reset passwords, manage devices, and monitor service health. Stay informed with critical notifications and support requests on the go.

What We Love

  • 💻 Easy to use
  • 🔑 Convenient password resets
  • 🚀 Efficient admin tasks on the go
  • 📱 Helpful for mobile management
  • 🔒 Secure authentication
  • 🔍 Useful for monitoring service health

Room to Improve

  • 🐛 Crashes and freezes
  • 🔍 Limited functionality compared to web portal
  • 🔍 Difficult to switch between accounts
  • 🔍 Lack of advanced admin features
  • 🔍 Inconsistent user experience

More Microsoft Office 365 Outlook apps to explore

FAQ about Microsoft Office 365 Outlook

What are the best microsoft office 365 outlook apps for iPhone?
Microsoft Outlook tops our microsoft office 365 outlook apps ranking as of October 2026, with a 4.8-star average from 9.4M App Store ratings, and it's free to download.
Yes — 17 of the top microsoft office 365 outlook apps we rank are free to download, including Microsoft Outlook and Microsoft Copilot.
Microsoft Outlook shows ads and offers in-app purchases, according to its App Store listing as of October 2026.
We track 244+ microsoft office 365 outlook apps on the iOS App Store as of October 2026, ranked by rating, recency, and analysis of real user reviews.