K-9 Mail Alternatives for iPhone
K-9 Mail is not available for iPhone but there are some alternatives with similar functionality. The most popular iPhone alternative is 
Microsoft Office Outlook. It's not free, so if you're looking for a free alternative, you could try 
Spark or 
Email - Edison Mail. If that doesn't suit you, our users have ranked 36 alternatives to K-9 Mail and ten of them are available for iPhone so hopefully you can find a suitable replacement. Other interesting iPhone alternatives to K-9 Mail are 
Airmail (Paid), 
BlueMail (Free Personal), 
TypeApp (Free Personal) and 
Canary Mail (Paid).
- Part of the Microsoft Office Suite, Outlook is a personal information manager that lets you manage your e-mail, calendar, contacts, and tasks.
- 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.
- Airmail is a lightweight and lightning fast mail client for Mac. Feature list:Accounts:- Unified Inbox and folders- Multi Account with editable html signatures.
- 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.
- 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...
- 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.
- Email by Edison (formerly Email by EasilyDo) is a brand new, elegantly designed, universal mail app to manage unlimited mail accounts.
- Making email better through artificial intelligence.
- Mailroom provides seamless integration between Gmails world class mobile web app and familiar iPhone conventions, along with progressive web interface enhancements for features...
- mBox Mail is a fast, full-featured Hotmail client for iOS devices.