Side-by-side comparison · 24 data points
Keep conversations moving forward by bringing context from an email into a Slack channel or direct message with the Slack for Outlook Add-In available in the Microsoft AppSource. You can choose to add a message and include attachments along with the email as well.
| Google Calendar | Slack for Outlook | |
|---|---|---|
| Tagline | ||
| Description | ||
| Screenshots | images | images |
| Languages | ||
| Platforms | ||
| Developer | ||
| Listed | — | — |
| Last updated | — | — |
From viewing your daily schedule or receiving up-to-the-minute reminders, keep your calendar top of mind without leaving Slack. Use Google Calendar in Slack to:
| Metric | Google Calendar | Slack for Outlook |
|---|---|---|
| Free plan | Yes | Yes |
| Pricing | Free | Free |
Pricing entry tiers: Google Calendar at Free, Slack for Outlook at Free. Check each app's tier structure for the capacity limits you actually need before deciding — the headline number is the same shape, but the gating shape per tier (seats, usage volume, integrations) varies.
Recommended evaluation path: install both apps' free tiers (where available) and run them in parallel on a small cohort for 7-14 days before committing. The data tables below show the per-feature breakdown — for most teams the deciding factor will be a single integration or workflow detail that's hard to compare from listing pages alone.
This verdict is generated from the live marketplace data on this page — rating, review count, pricing tier, and category position all refresh from the canonical Slack Marketplace listing every 24 hours. AppRanks does not accept payment to influence comparison outcomes; the methodology is documented on the About page and applies identically to every pair on the site.
Read each app's audit: Google Calendar audit • Slack for Outlook audit
Both Google Calendar and Slack for Outlook offer paid plans only. Google Calendar starts at Free; Slack for Outlook starts at Free. Compare the per-tier features in the Pricing section above before committing.
AppRanks cannot recommend one over the other from published marketplace data: the Slack Marketplace does not expose a rating or review base that separates them. Read both apps' detail pages for the feature breakdown, and compare against your own requirements rather than a headline number.
Both apps are one-click installs from the Slack Marketplace. AppRanks doesn't measure setup time directly, and the Slack Marketplace publishes no review base that would let us infer it for these two — read the recent reviews on each app's detail page for user-reported install experience.
Google Calendar typically suits early-stage and growth-mode teams based on its published review base (0 reviews). Slack for Outlook typically suits early-stage and growth-mode teams based on its published review base (0 reviews). A larger review base generally means the app has been exercised at scale — relevant if you are processing high volume or handling enterprise compliance requirements.
Migration support varies by app and category. Google Calendar and Slack for Outlook both publish their export options on their marketplace listing pages (or in their support docs); some apps offer one-click import from competitors, others require CSV. The fastest check: search "import from Slack for Outlook" in each app's help center. AppRanks does not track migration tooling directly — this is a category-specific capability worth verifying before commitment.