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Microsoft Outlook vs Thunderbird
A side-by-side comparison of Microsoft Outlook and Thunderbird.
| Visit website | Visit website | |
|---|---|---|
| Description | Email, calendar and contacts from Microsoft | Free, open-source desktop email client from Mozilla |
| Pricing | FreemiumProprietary | FreeOpen source(MPL-2.0) |
| Developer | Microsoft | MZLA Technologies (Mozilla) |
| Ratings | 4.8(9.3M) · App Store | — |
| Platforms | ||
| Web | ||
| Windows | ||
| Mac | ||
| iPhone | ||
| Android | ||
| Linux | ||
| Features | ||
| AI assistant | ||
| Calendar view | ||
| Integrations | ||
| Offline mode | ||
| Send later | ||
| Shared inbox | ||
| Ad-free | ||
| End-to-end encryption | ||
| Plugins & extensions | ||
| Unified inbox | ||
Alternatives to both Microsoft Outlook and Thunderbird
Gmail
Google's free email service with smart filtering
4.7(2.4M) · App StoreExcellent spam filtering and fast search
Freemium12 alternativesMailspring
Open-source desktop email client for Windows, Mac and Linux
17.9KstarsFree and open source on Windows, Mac and Linux
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Apple Mail
Built-in email app for Mac, iPhone and iPad
Free and preinstalled on Mac, iPhone and iPad
Free9 alternatives
Proton Mail
Encrypted email from Switzerland with a free plan
4.8(48.7K) · App StoreEnd-to-end and zero-access encryption protect stored mail
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Spark
Smart email app that sorts your inbox and adds AI tools
4.6(82.7K) · App StoreSmart inbox separates personal mail, notifications and newsletters
Freemium11 alternatives
eM Client
Desktop email, calendar and tasks for Windows and Mac
Email, calendar, tasks, contacts and notes in one desktop app
Freemium7 alternatives