Alternatives to K-9 Mail for Android 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
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
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
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

7 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
Aqua Mail

AquaMail is an email app for Internet and Exchange mail, for Android 4.0.3 and higher. Easy automatic setup for popular email services: Gmail, Yahoo, Hotmail...

Freemium Android Android Tablet
Customizable Dark theme Add a feature

10 Like
Mail Wise

Mail Wise – Read Just What You Need. The best conversation threads ever. A free email client that transforms messy emails into clean and clear conversations. Get all...

Freemium Android
Multiple Account support Add a feature

7 Like
EmailTray

EmailTray is a smart email client and an email notifier for POP3 and IMAP email accounts, including Gmail, Hotmail, Yahoo mail and AOL. EmailTray intelligently ranks...

Free Windows Android
Support for IMAP POP3 Support Add a feature

3 Like
ProfiMail

ProfiMail is a powerful email client for mobile phones. It allows you to read your mail on the go, and send text with attachments directly from your phone. Send...

Freemium Windows Mobile Android S60 Android Tablet
No features added Add a feature

2 Like