Alternatives to K-9 Mail for iPhone with any license

Microsoft Office Outlook

Part of the Microsoft Office Suite, Outlook is a personal information manager that lets you manage your e-mail, calendar, contacts, and tasks.

Commercial Mac OS X Windows Web Android iPhone ... Android Tablet Windows Phone iPad Apple Watch Android Wear
Built-in Calendar Dark theme Signature with image Add a feature

311 Like
Zoho Mail

Zoho Mail is a webmail service built with the needs of a modern business in mind. It provides features for business users to communicate effectively while catering to...

Freemium Web Android iPhone
Custom domain Ad-free Integrated Spam Protection Mail filtering ... POP3 Support Privacy focused SMTP integration Two factor authentication Add a feature

75 Like
Spark

E-mail app with all the great features: swipes (long/short), snooze, add (multiple) attachments from the cloud, support for various e-mail services and more.

Free Mac iPhone iPad Apple Watch
Calendar integration Cloud sync Configurability Configurable request timeout ... Multiple Account support Export to PDF Sync across Devices Add a feature

60 Like
Airmail

Airmail is a lightweight and lightning fast mail client for Mac. Feature list: Accounts: - Unified Inbox and folders - Multi Account with editable html...

Commercial Mac OS X iPhone iPad Apple Watch
Customizable Dropbox integration Fullscreen support Lightweight ... Multiple Account support Add a feature

57 Like
Newton Mail

Newton is a fully featured mail client available for Android, iOS, macOS and Windows. Works for watch too. It's based on cloud so you can connect it to any account...

Commercial Mac OS X Windows Android iPhone Windows RT ... Android Tablet iPad Apple Watch Android Wear
Sync between devices Combined email cloud syncing Conversation view Focused Inbox ... Multiple languages Real-time pushing Salesforce integration Add a feature

39 Like
Canary Mail

Canary is an exciting new email client for Mac that offers a full set of powerful features with one key difference - your emails are not stored on a 3rd party server. ...

Commercial Mac OS X iPhone
No features added Add a feature

9 Like
TypeApp

TypeApp is an all-free, beautifully designed, universal email app, capable of managing unlimited number of mail accounts from various providers, allowing for smart push...

Free Personal Android iPhone Android Tablet iPad Android Wear ... Kindle Fire
Live Push Notifications Multiple Account support Unified inbox Add a feature

19 Like
Astro

Modern email and calendar apps for Mac, iOS, Android, Slack and Alexa, powered by Artificial Intelligence. Astro keeps you focused on what's most important.

Free Mac Android iPhone iPad Slack ... Amazon Echo (Alexa Voice Service)
Calendar integration Email tracking Google Calendar integration Multiple Account support ... Snooze reliability Add a feature

20 Like
BlueMail

BlueMail is a modern, mobile first, powerful Email management tool with a sleek design, unified inbox and support for all your accounts: IMAP,Exchange,POP3.

Free Personal Android iPhone Android Tablet iPad Apple Watch
Ad-free Support for IMAP POP3 Support Unified inbox Add a feature

6 Like
SlideMail

Making email better through artificial intelligence.

Free iPhone
Multiple Account support Add a feature

5 Like
mailPro

mailPro is a Hotmail, MSN & Windows Live account manager, with essential features to keep your email synchronized. The native POP3 Hotmail & Windows Live...

Freemium iPhone
No features added Add a feature

0 Like
- Discontinued Not found in iTunes store. Not available from author's homepage.
Mailroom

Mailroom provides seamless integration between Gmails world class mobile web app and familiar iPhone conventions, along with progressive web interface enhancements for...

Commercial iPhone
No features added Add a feature

0 Like
mBoxMail

mBox Mail is a fast, full-featured Hotmail client for iOS devices. It offers full access and control of your Windows Live Hotmail, from folder management to Windows Live...

Commercial iPhone
No features added Add a feature

0 Like