Kube

Kube is a modern communication and collaboration client built with QtQuick on top of a high performance, low resource usage core. It provides online and offline access...

Free
Open Source
Linux

Kube is a modern communication and collaboration client built with QtQuick on top of a high performance, low resource usage core. It provides online and offline access to all your mail, contacts, calendars, notes, todo's and more. With a strong focus on usability, the team works with designers and UX experts from the ground up, to build a product that is not only visually appealing but also a joy to use.

Links to official Kube sites

Features

The Best 25 Kube Alternatives

1709 Like

Thunderbird

thunderbird is a free, open source, cross-platform e-mail, news and instant messaging client. the project strategy is modeled after mozilla firefox.

Free Open Source Windows Linux BSD Mac Haiku

Customizable Extensible by Plugins/Extensions Portable Integrated Chat Built in RSS reader Calendar integration Free API Import from Google Reader Integrated Web Browser Multiple Account support Export to OPML Import feeds from OPML POP3 Support Tabbed interface
303 Like

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 Android iPhone Android Tablet iPad Web Windows Phone

Built in Calendar Dark theme Signature with image
269 Like

Mailbird

Mailbird is more than just another email client - It's an all-in-one communication platform for email, contacts, calendar, apps, task management, video meetings and much more. Try it free, today.

Freemium Windows

Sync Contacts GSuite Integration Multiple Account support Slack integration Dropbox integration Facebook integration Asana integration Conversation view Trello integration Twitter integration Undo send Unified inbox
202 Like

Apple Mail

There’s big news attached. The best way to manage email on a Mac gets even better with OS X Yosemite.

Free Mac OS X iPhone iPad
177 Like

eM Client

eM Client is a full featured e-mail client with a modern and easy to use interface. eM Client also offers calendar, tasks, contacts and chat.

Freemium Windows

Support for IMAP Calendar integration POP3 Support Dark theme Encrypted email Conversation view Automatic Backup Built in themes Built in translation Combined Inbox Email preview Imports email from Live mail Tasks managment
165 Like

K-9 Mail

K-9 is an open source email client for Android with multi-folder sync, email signatures, Bcc-to-self, return-address configuration, keyboard shortcuts, Exchange Support, message flagging, IMAP deletes, saving attachments, configurable...

Free Open Source Android Android Tablet

Privacy focused Ad free Multiple Account support PGP Encryption
146 Like

Evolution

Evolution is the official personal information manager and workgroup information management tool for GNOME. It combines e-mail, calendar, address book, and task list management functions.

Free Open Source Linux BSD S/MIME GNOME OpenPGP

Integrated Spam Protection Multiple languages Built in RSS reader Calendar integration POP3 Support Encrypted email CalDAV CardDAV
128 Like

Postbox

Postbox is an email application that helps you organize your work life and get stuff done. It has all the elegance and simplicity of Apple Mail, but with more power and flexibility to manage even the most demanding workloads.

Commercial Mac OS X Windows

Extensible by Plugins/Extensions Support for IMAP Multiple languages Built in RSS reader Multiple Account support POP3 Support Tabbed interface Onedrive integration Dropbox integration Box.com integration
69 Like

Geary

Geary is an email application built for GNOME 3. It allows you to read and send email with a simple, modern interface.

Free Open Source Linux BSD GNOME
51 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 OS X iPhone iPad Apple Watch

Calendar integration Export to PDF
46 Like

The Bat

The Bat! is a secure email client software, built to protect your correspondence against third-parties. .

Commercial Windows S/MIME OpenPGP

Portable Support for IMAP Built in RSS reader POP3 Support
30 Like

Zimbra Desktop

The free Zimbra Desktop client allows you to meld the online and offline worlds – storing and synching your email, calendar, contacts, files and documents in the cloud, yet having them locally accessible when on the road.

Free Personal Mac OS X Windows Linux
28 Like

Kontact - KMail

KMail is the email component of Kontact, the integrated personal information manager of KDE. Kontact is a personal information manager and groupware software suite for KDE.

Free Open Source Mac OS X Windows Linux BSD
20 Like

Polymail

The most powerful platform for email productivity in a beautiful native app — on desktop and mobile.

Freemium Mac OS X iPhone iPad

Sync Contacts Multiple Account support Email tracking Email scheduling
20 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 Android iPhone iPad Mac Slack Amazon Echo (Alexa Voice Service)

Calendar integration Multiple Account support Email tracking Google Calendar integration Snooze reliability
17 Like

Mailspring

Boost your productivity and send better email with Mailspring, a beautiful, fast email client for Mac, Windows, and Linux. Mailspring is free to use and an optional pro version adds read receipts, send later, reminders and more.

Freemium

Customizable Extensible by Plugins/Extensions Support for IMAP Sync Contacts Multiple Account support Drag n drop Support for Themes Dark theme Conversation view Unified inbox Email tracking Email Analytics Email tracking & analytics
16 Like

Shift

Shift is an email client that makes navigating between Mail, Calendar, Drive + your favorite Apps & Extensions easy (for Gmail, Outlook.com - Office 365 & Hotmail). .

Freemium

Multiple Account support Gmail integration Sync with Google Calendar Sync with Google Drive Cross account search Google Apps integration
7 Like

Pantheon Mail

pantheon mail is a free open source email client forked by the elementary os community from geary...

Free Open Source Linux elementary OS
2 Like

Nylas Mail Lives

nylas mail lives is a fork of nylas mail that fixes many longstanding issues, improves the client experience, and is committed to...

Free Open Source Mac OS X Windows Linux Self-Hosted

Extensible by Plugins/Extensions Multiple Account support

Search app for alternative

Alternativein is a new approach to finding good application.
Just type what software you want to change and browse great alternatives, based on our great community recommendations.

Alternativein is powered by a community that helps you make informed decisions. Tell us what you’re passionate about to get your personalized feed and help others.

Alternativein is a product recommendation community that helps connect people with the best products for them. You shouldn’t have to waste time and money to find solutions to your problems. By collecting the knowledge of enthusiasts across the world through recommendations, we can quickly and confidently show people the truth about a product.

We dream of a world where products succeed or fail on their own merits, and allowing people the space to share their thoughts is the first step in achieving that.

Kube

Links to official Kube sites

Features

Categories

Tags

The Best 25 Kube Alternatives

Thunderbird

Microsoft Office Outlook

Mailbird

Apple Mail

eM Client

K-9 Mail

Evolution

Postbox

Geary

Spark

The Bat

Zimbra Desktop

Kontact - KMail

Polymail

Astro

Mailspring

Shift

Pantheon Mail

Nylas Mail Lives

Search app for alternative

Menu