Spark vs. Microsoft Outlook

Comparison of Spark and Microsoft Outlook
Real cost
	Spark A modern inbox that sorts what matters first. Your mail passes through the vendor's servers. Swap this Tool Use ClickUp instead	Microsoft Outlook The standard for work mail, with calendar and contacts built in. The free version shows ads. Swap this Tool Use ClickUp instead
Price	60 € per year	0 €
Payment	Subscription	Free
Trial	No trial	No trial
Free Tier	Free plan with the core mail features	Free with ads; without ads as part of Microsoft 365
Open Source	No	No
Features and limits
Main Features	Smart inbox that sorts mail by importance Snooze and send later Shared inboxes for teams Writing help Unified inbox	Mail, calendar and contacts in one app Works with Microsoft 365 and Exchange Focused inbox Rules and categories Several accounts
Limits	Mail is processed on the vendor's servers The best features need a paid plan	The free version shows ads The new version lacks some features of the classic one
Compatibility and trust
Supported Operating Systems	WindowsmacOS	WindowsmacOS
Verified on	10 Sep 2026	9 Oct 2026
Where to buy
Vendor	Go to vendor’s site: Spark (opens in a new tab) Free plan; paid plan per year. Approximate list price in euros, check the vendor.	Go to vendor’s site: Microsoft Outlook (opens in a new tab) Free with ads; part of Microsoft 365 without ads.

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