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Best Outlook Attachment Utility Apps

166+ iOS apps curated and reviewed

4.4 avg rating
19 free apps
Updated June 2026

The best outlook attachment utility apps on iPhone average 4.4★ across 166+ titles — we've ranked them by what real users actually keep on their phones. Updated June 2026.

Top Picks for Outlook Attachment Utility

MailBuzzr for Outlook#1

MailBuzzr for Outlook by Aversys Mobile

Email for Hotmail and Outlook
Editor's Choice
📊 Productivity
4.1😐(520 ratings)
FreeAdsIn-App Purchases
MailBuzzr for Outlook screenshot 1
MailBuzzr for Outlook screenshot 2
MailBuzzr for Outlook screenshot 3
MailBuzzr for Outlook screenshot 4
MailBuzzr for Outlook screenshot 5

Experience convenient email management with a feature-rich app, offering multiple account support, unified inbox, quick peek functionality, professional signature options, smart tags and notifications, undo actions, elegant design, beautiful themes, and more. Enhance your email experience effortlessly. For questions or suggestions, contact support@aversys.com.

What We Love

  • 🚀 Fast and reliable
  • 👍 Easy to use
  • 🔒 Secure email access
  • 💡 Convenient email management

Room to Improve

  • 🐛 Crashes and freezes
  • 🐛 Sync and connectivity issues
  • 🐛 Deleted emails reappearing
Microsoft Outlook#2

Microsoft Outlook by Microsoft Corporation

Secure Email, Calendar & Files
Strong Contender
📊 Productivity
4.8😐(9M ratings)
FreeAdsIn-App Purchases
#7in 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

Get organized and stay connected with our secure email and calendar application. Manage your schedule, emails, and contacts effortlessly on any device. Download now for seamless productivity.

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+ for Outlook#3

Mail+ for Outlook by MAIL PLUS APP LLC

Worth Considering
💼 Business
3.9😐(840 ratings)
$4.99AdsIn-App Purchases
Mail+ for Outlook screenshot 1
Mail+ for Outlook screenshot 2
Mail+ for Outlook screenshot 3
Mail+ for Outlook screenshot 4

An email management app that offers seamless integration with Outlook, providing users with advanced features such as categorization, priority filters, and attachment organization. Streamline your email experience and boost productivity today!

What We Love

  • 🚀 Works great
  • 👍 User-friendly
  • 🔒 Secure access to work email
  • 📆 Calendar integration

Room to Improve

  • 🐛 Crashes frequently
  • ⚠️ Unreliable performance
  • 🔍 Search functionality issues

More Outlook Attachment Utility apps to explore

4
Email for Hotmail & Outlook
Email for Hotmail & Outlook
Email for Hotmail & Outlook
Support Hotmail, Outlook, O365
Free

A feature-rich email app that streamlines your inbox management, supports major email services, offers unique features like custom signatures and real-time notifications, and focuses on control, privacy, and simplicity. Simplify your email experience and save time with this efficient application.

🔧 Utilities
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5
Clean Email: Inbox Cleaner
Clean Email: Inbox Cleaner
Clean Email: Inbox Cleaner
Unsubscribe & Bulk Delete Mail
Free

Take control of your inbox with an application that helps you clean, organize, and unsubscribe from emails efficiently. With powerful features like bulk actions, automation, and security monitoring, you can maintain a clutter-free and safe email environment. Try it for free and experience a more streamlined email management process.

📊 Productivity
(3.6K)
6
Email for Hotmail, Outlook
Email for Hotmail, Outlook
Email for Hotmail, Outlook
Support Outlook, Hotmail
Free

Access your Hotmail, Outlook, and other email accounts from a unified interface, with features including fast and secure sign-in, attachment support, and customizable email signatures. Manage multiple accounts easily and stay notified with instant new email notifications.

🔧 Utilities
(1.4K)
7
Mail App for Outlook
Mail App for Outlook
Mail App for Outlook
Inbox Zero Mail Client
Free

A new Inbox Zero Mail Client for Outlook, offering quick inbox triaging, fast message management, rich keyboard shortcuts, and instant sync. This native Outlook app prioritizes privacy and efficiency for handling recent emails. Share your feedback via in-app support. Explore now!

📊 Productivity
(5K)
8
Airmail for Gmail Outlook Mail
Airmail for Gmail Outlook Mail
Airmail for Gmail Outlook Mail
Your Mail With You
Free

A feature-packed mail client for iOS and Mac, Airmail supports various mail services like Gmail, Exchange, and Outlook. It offers advanced features such as customizable workflows, iCloud sync, snooze options, and integration with numerous apps for seamless productivity. Explore Airmail for efficient email management and enhanced productivity.

📊 Productivity
(3.8K)
9
Email - Edison Mail
Email - Edison Mail
Email - Edison Mail
No more Spam - Inbox Zero
Free

A fast and secure email application with advanced features for efficient organization and management of emails. Take control of your inbox with Edison Mail.

📊 Productivity
(2.5K)
10
Canary Mail – AI Email
Canary Mail – AI Email
Canary Mail – AI Email
Read Receipts, Unified Inbox
Free

Canary Mail is your essential AI-powered email companion, ensuring intelligent organization and communication efficiency. Take charge of your inbox with advanced features and personalized tools to streamline your email experience.

📊 Productivity
(811)
11
myMail box: email client app
myMail box: email client app
myMail box: email client app
E-mail for Gmail, Hotmail, AOL
Free

Access all your email accounts in one place with our email client app. Enjoy features like push notifications, personalized inboxes, efficient search options, enhanced security, and quick contact suggestions. Download now for a seamless email management experience!

📊 Productivity
(17K)
12
Winmail Viewer - Letter Opener
Winmail Viewer - Letter Opener
Winmail Viewer - Letter Opener
Open Email, MSG & XPS files
Free

View and manage email attachments with ease using this application. Say goodbye to compatibility issues with various file formats and streamline your email attachment viewing experience. Try it now for a hassle-free email management solution.

🔧 Utilities
(4.5K)
13
Spike: AI Email & Team Chat
Spike: AI Email & Team Chat
Spike: AI Email & Team Chat
Teamspace & mail for business
Free

Spike is an innovative email application that transforms your inbox into a collaborative workspace. With powerful tools like chat, notes, and tasks integrated directly into your emails, Spike helps you communicate and collaborate more efficiently. Experience a new way of managing your emails - try Spike today!

📊 Productivity
(281)
14
Superhuman Mail
Superhuman Mail
Superhuman Mail
The most productive email app
Free

Experience the fastest email service with powerful features like customizable split inbox, automated reminders, time-saving snippets, scheduled sending, and more. Maximize your productivity with Superhuman Mail - respond quickly, stay organized, and reclaim your time. Visit https://superhuman.com/terms to learn more.

📊 Productivity
(3.5K)
15
Chuck – Smarter Email with AI
Chuck – Smarter Email with AI
Chuck – Smarter Email with AI
AI Email Cleanup & Unsubscribe
Free

Chuck is an AI-powered email application that enhances email productivity and security. With smart features like organization tools and advanced encryption, Chuck revolutionizes the way you manage your inbox. Experience smarter email management now!

📊 Productivity
(15K)
16
mail.com - email & cloud
mail.com - email & cloud
mail.com - email & cloud
Mailbox for storage & mail
Free

Get a robust and user-friendly free email service that offers secure communication and convenient inbox management. Join now to experience seamless emailing with innovative features like spam filtering and customizable settings.

📊 Productivity
(103K)
17
Email Client - Boomerang Mail
Email Client - Boomerang Mail
Email Client - Boomerang Mail
Gmail, Outlook E-mail Triage
Free

Manage your emails efficiently with this productivity app that integrates with Gmail and Outlook. Access all email accounts, schedule emails for later, set read receipts, and enjoy one-tap calendar scheduling. Try it now for optimized email management!

📊 Productivity
(4.7K)
18
Winmail Dat Opener +
Winmail Dat Opener +
Winmail Dat Opener +
View windat odt xps attachment
Free

View windat, odt, and xps attachments from received emails with our app. Easily open and view important attachments that come as winmail.dat files due to formatting issues. Explore subscription options for enhanced features.

🔧 Utilities
(16)
19
WPS Office-AI Doc, PDF, Sheet
WPS Office-AI Doc, PDF, Sheet
WPS Office-AI Doc, PDF, Sheet
Office Suite with PDF Editor
Free

A versatile office suite app that combines document editing, AI-generated content, and PDF tools in one place, offering compatibility with various formats and seamless workflow enhancements. Edit, create, and manage documents efficiently with WPS Office on your iPhone or iPad.

📊 Productivity
(18K)
20
Blue Mail - Email | Calendar
Blue Mail - Email | Calendar
Blue Mail - Email | Calendar
AI-Powered, Fast & Secure
Free

A powerful email and calendar app powered by AI for quick and efficient organization of your communication and schedule. Stay on top of your emails and appointments effortlessly. Experience advanced features seamlessly integrated for improved productivity.

💼 Business
(10K)

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