Best Outlook Office365 Apps

250+ iOS apps curated and reviewed

4.5 avg rating
18 free apps
Updated August 2026

Microsoft Outlook is the household name in outlook office365, but it's far from the only option. We track 250+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.

Compare top Outlook Office365 Apps (August 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Microsoft OutlookMicrosoft OutlookFree4.8★ (9.2M)YesYesSep 2026
2Mail App for Outlook 365Mail App for Outlook 365Free3.7★ (6)YesYesAug 2026
3Microsoft CopilotMicrosoft CopilotFree4.7★ (1.3M)YesYesSep 2026
4MailMailFree4.7★ (4M)NoNoSep 2026
5Microsoft 365 AdminMicrosoft 365 AdminFree4.6★ (5.8K)NoNoAug 2026
6Mail App for OutlookMail App for OutlookFree4.5★ (6.8K)NoYesAug 2026
7Boxer - Workspace ONEBoxer - Workspace ONEFree4.4★ (77K)NoNoSep 2026
8Microsoft TeamsMicrosoft TeamsFree4.8★ (3.4M)NoYesSep 2026

Top Picks for Outlook Office365

Microsoft Outlook#1

Microsoft Outlook by Microsoft Corporation

Secure Email, Calendar & Files
Editor's Choice
📊 Productivity
4.8😐(9.2M ratings)
FreeAdsIn-App Purchases
#6in Productivity
Microsoft Outlook screenshot 1
Microsoft Outlook screenshot 2
Microsoft Outlook screenshot 3
Microsoft Outlook screenshot 4
Microsoft Outlook screenshot 5
Microsoft Outlook screenshot 6

Consolidate all your email accounts and calendars into one streamlined application. Manage your inbox, schedule meetings, and access files from various cloud services. Enhance productivity with AI-powered writing assistance and smart inbox features.

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
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
Mail App for Outlook 365 screenshot 1
Mail App for Outlook 365 screenshot 2
Mail App for Outlook 365 screenshot 3
Mail App for Outlook 365 screenshot 4
Mail App for Outlook 365 screenshot 5
Mail App for Outlook 365 screenshot 6

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😐(1.3M ratings)
FreeAdsIn-App Purchases
#24in Productivity
Microsoft Copilot screenshot 1
Microsoft Copilot screenshot 2
Microsoft Copilot screenshot 3
Microsoft Copilot screenshot 4
Microsoft Copilot screenshot 5
Microsoft Copilot screenshot 6

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

More Outlook Office365 apps to explore

4
Mail
Mail
Mail
by Apple
Free

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.

Unified inbox for multiple accountsAutomatic message categorizationPriority Messages and summarization
📊 Productivity
(4M)
free
5
Microsoft 365 Admin
Microsoft 365 Admin
Microsoft 365 Admin
by Microsoft Corporation
Free

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.

Manage users and groupsReset passwordsManage devices
📊 Productivity
(5.8K)
free
6
Mail App for Outlook
Mail App for Outlook
Mail App for Outlook
Inbox Zero Mail Client
Free

This app offers a fast and efficient way to manage your Outlook inbox, focusing on quick triaging and instant message sending/receiving. It prioritizes privacy and utilizes a modern codebase for a seamless experience.

Privacy awareFast email management toolsRich keyboard shortcuts
📊 Productivity
(6.8K)
subscription
7
Boxer - Workspace ONE
Boxer - Workspace ONE
Boxer - Workspace ONE
Omnissa Workspace ONE
Free

Manage email, calendar, and contacts efficiently with customizable tools like swipe gestures and quick replies. This app offers a modern, intuitive interface designed for professionals to boost productivity on the go. It also includes features for seamless conference call dialing and robust data security.

Unified email, calendar, and contactsCustomizable swipe gesturesQuick reply templates
💼 Business
(77K)
free
8
Microsoft Teams
Microsoft Teams
Microsoft Teams
Call. Chat. Collaborate
Free

This app brings people together for community activities or work projects. It offers integrated chat, events, meetings, storage, and task management. Connect, collaborate, and get things done securely in one place.

Community and team organization1-on-1 and group chatSecure audio and video calls
💼 Business
(3.4M)
free
9
Microsoft SharePoint
Microsoft SharePoint
Microsoft SharePoint
by Microsoft Corporation
Free

Access organizational files, news, and colleagues on the go. This app uses AI to personalize your experience, helping you find expertise and content quickly. Stay connected with your team and collaborate effectively from anywhere.

Personalized file and news discoveryAI-powered search for content and expertiseAccess team and communication sites
📊 Productivity
(139K)
free
10
Power Apps
Power Apps
Power Apps
by Microsoft Corporation
Free

Access custom business applications for work or school from any location. This app serves as a portal to a variety of tools, from campus maps and event registration to expense tracking and performance dashboards. Build and share your own low-code apps easily.

Access work or school apps anywhereCustomizable app portalEvent registration tools
💼 Business
(23K)
free
11
myMail box: email client app
myMail box: email client app
myMail box: email client app
E-mail for Gmail, Hotmail, AOL
Free

Consolidate and manage multiple email accounts from various providers in a single, user-friendly interface. Enjoy customizable notifications, enhanced security features, and efficient search capabilities to streamline your communication.

Unified inbox for multiple email accountsCustomizable push notificationsEmail thread view
📊 Productivity
(18K)
free with in-app purchases
12
Documents (Office Docs)
Documents (Office Docs)
Documents (Office Docs)
Edit, Browse and Manage Files
Free

This mobile office suite allows users to edit and manage spreadsheet and rich text files on their iPhone and iPad. It offers online and offline functionality, synchronization with cloud storage services, and compatibility with major office suites.

Edit spreadsheet and rich text filesOnline and offline functionalitySynchronize with Google Drive, Dropbox, Box, SkyDrive
💼 Business
(43K)
free with in-app purchases
13
Mail+ for Outlook
Mail+ for Outlook
Mail+ for Outlook
by MAIL PLUS APP LLC
$4.99

Access Outlook email and calendar securely on your iOS device. Manage work and personal accounts separately with tools designed for mobile business users, including rich text editing and scheduling assistance. Supports various Exchange versions and popular email services.

Secure Outlook email accessCalendar event managementRich HTML text editing
💼 Business
(840)
free with in-app purchases
14
TaskTask for Outlook Tasks
TaskTask for Outlook Tasks
TaskTask for Outlook Tasks
by TaskTask LLC
Free
$4.99 | 100% OFF

Manage your Outlook or Gmail tasks directly on your iPhone. This app syncs your entire task list, including advanced properties and flagged emails, with your Office 365, Exchange, or Google accounts. It offers robust task management features for on-the-go productivity.

Sync Outlook/Gmail tasksManage task attributesSet reminders and due dates
📊 Productivity
(1.1K)
free with in-app purchases
15
Quip - Docs, Chat, Sheets
Quip - Docs, Chat, Sheets
Quip - Docs, Chat, Sheets
by Quip
Free

This app combines chat, documents, slides, and spreadsheets into a single platform for seamless team collaboration. It streamlines workflows by reducing the need for emails and meetings, allowing teams to work faster and more efficiently across all their devices.

Living documentsIntegrated chat and messagingFull-featured spreadsheets
📊 Productivity
(26K)
free
16
MailBuzzr for Outlook
MailBuzzr for Outlook
MailBuzzr for Outlook
Email for Hotmail and Outlook
Free

Manage all your Hotmail and Outlook accounts in one fast, beautifully designed app. Get smart notifications, organize emails with tags and filters, and undo actions easily. Enjoy a frustration-free email experience with an elegant interface and custom themes.

Unified inbox for multiple accountsSmart notifications with customizable alertsQuick email preview and undo actions
📊 Productivity
(520)
free with in-app purchases
17
Docs² | for Microsoft Office
Docs² | for Microsoft Office
Docs² | for Microsoft Office
Word, Excel & PowerPoint docs
$9.99

This app helps you create, edit, and manage Microsoft Office documents on the go. It offers video guides, templates, and a document browser for efficient workflow. Secure your files and sync them across devices for seamless productivity.

Create Word, Excel, PowerPoint documentsEdit and share documents onlineAccess free document templates
💼 Business
(688)
free
18
Microsoft Planner
Microsoft Planner
Microsoft Planner
by Microsoft Corporation
Free

Organize teamwork visually with a simple, interactive board. Assign tasks, track progress, and collaborate with your team through integrated conversations and file sharing. Stay updated on all your tasks across different plans and devices.

Visual task boardsTask assignment and trackingTeam collaboration and chat
📊 Productivity
(13K)
free
19
Office Flexispace
Office Flexispace
Office Flexispace
Бронирование рабочих мест
Free

This system allows employees to book office workstations by selecting a desk on a map. It helps manage office spaces, control density for safety, and track workstation usage for efficient cleaning. Features include QR code check-ins and Microsoft Teams integration.

Workstation booking via interactive mapOffice space and floor managementSeating density control for safety
💼 Business
(0)
free
20
Google Sheets
Google Sheets
Google Sheets
Collaborate on Spreadsheets
Free

Create, edit, and collaborate on spreadsheets from anywhere, anytime. Work offline, format cells, insert formulas, and view charts. Seamlessly edit Excel files and enjoy automatic saving of your work.

Create and edit spreadsheetsReal-time collaborationOffline access
📊 Productivity
(1.8M)
free

FAQ about Outlook Office365

What are the best outlook office365 apps for iPhone?
Microsoft Outlook tops our outlook office365 apps ranking as of August 2026, with a 4.8-star average from 9.2M App Store ratings, and it's free to download.
Yes — 18 of the top outlook office365 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 August 2026.
We track 250+ outlook office365 apps on the iOS App Store as of August 2026, ranked by rating, recency, and analysis of real user reviews.
This application consolidates all your email accounts and calendars into a single, convenient location. It helps you manage your inbox, schedule meetings, and access files from various cloud storage services. The app also offers AI-powered features to enhance productivity, such as summarizing long email threads and assisting with writing.
Key features include a smart inbox that sorts messages, quick swipe actions for managing emails, easy sharing of meeting availability, and the ability to find contacts and trips. You can also view and attach files from services like OneDrive and Dropbox without downloading them, and edit Office documents directly within the app.

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