Best Evolution Alternatives & Competitors in 2025

Thunderbird is a free email application that's easy to set up and customize - and it's loaded with great features!

Organize your world. Outlook’s email and calendar tools help you communicate, stay on top of what matters, and get things done.

VoIPstudio is an award-winning VoIP system that offers businesses of all sizes a scalable communication solution. It’s inexpensive, easy-to-use, offers a full suite of PBX features, and is fully integrated for CRM.

Try for free paid Free Trial $4.99 / Monthly (User)

eM Client is a fully-featured email client for Windows and macOS with a clean and easy-to-use interface. eM Client also offers features for calendars, tasks, contacts, notes, and chat.

freemium

Mailbird is the best email client for Windows 7, 8 and 10

Mailspring is a mail client for Mac, Windows and Linux.

Open Source

There’s big news attached.

The Power Email App for busy professionals, like you.

K-9 is an opensource email client making it easy to chew through large volumes of email.

Claws Mail is an email client (and news reader), based on GTK+, featuring Quick response

Geary is an email application built for GNOME 3.

Curve Hero is a dental practice management that delivers office management via cloud, allowing you to access your patient data from anywhere

Secure email with absolutely no compromises. Get your free encrypted email account today.

freemium €5.0 / Monthly (user - 5 GB)

Sylpheed is a simple, lightweight but featureful, and easy-to-use e-mail client (mailer, MUA).