Meet the contenders

Whether you're a freelancer, small business owner, or corporate executive, there's an email app for you. We're here to help you decide.

Let's look at how these two email apps stack up against each other.

Mailspring

Mailspring (formerly known as Nylas Mail) is an open-source email client that supports multiple accounts. Available in Free and Pro versions, Mailspring offers both basic and advanced features suitable for student, personal, and professional users.

Outlook for Windows

Outlook for Windows is a new email client and personal information manager that replaces the defunct Windows Mail and Calendar apps (which are no longer supported by Microsoft). This default email client app is included in most newer Windows 11 PCs shipped in 2024 and features tight integration with Microsoft 365 apps, AI tools, and a fresh design.

Mailspring vs Outlook for Windows: A side-by-side comparison

	Mailspring	Outlook for Windows
Operating system	WindowsmacOSLinux	Windows
Versions	Free Pro	Outlook Free Microsoft 365 Basic Microsoft 365 Personal Microsoft 365 Family
Price(s)	Free Pro: $8/month	Outlook Free Microsoft 365 Basic: $19.99/year Microsoft 365 Personal: $99.99/year Microsoft 365 Family: $129.99/year
Notable features	Multi-account support Unified inbox Touch and gesture support Advanced search Activity tracking Quick-reply templates Mac, Windows, and Linux support Themes and layouts (including dark mode) Message translations Localized into 9 languages	Multi-account support Simplified interface, with modern design Integration with Microsoft 365 tools Natural-language search capabilities AI-assisted email authoring with Microsoft Copilot Third-party app integrations Customizable user interface Collaboration tools Offline support Built-in translation for email messages in over 70 languages