The verdict
On the data we hold, it's close: neither pulls ahead on features, a free plan or AI access. The choice comes down to how you work.
What the data says
- Both have a free plan, so you can try each before you pay.
- Microsoft Outlook starts lower, at $1.67/mo against $25/mo.
- Both have an API and an MCP server, so either works with AI employees.
- In our Tech stack ranking, Microsoft Outlook places 29 and Supabase 12 of 72.
Side by side
| At a glance | ||
|---|---|---|
| Starts at | $1.67/mo | $25/mo |
| Free plan | Yes | Yes |
| API | Yes | Yes |
| MCP server | Yes | Yes |
| Links |
Plans and pricing
Microsoft Outlook
- Outlook (free)Free account for one person with 15 GB mailbox storage.Free
- Microsoft 365 BasicAd-free Outlook for one person with 100 GB mailbox storage.$19.99/yr
- Microsoft 365 PersonalFor one person, with desktop apps and Copilot features.$99.99/yr
- Microsoft 365 FamilyFor one to six people, with desktop apps and Copilot features.$129.99/yr
- Microsoft 365 Business BasicWeb and mobile Outlook with custom business email, paid yearly.$84/yr/seat
- Microsoft 365 Business Standard with CopilotDesktop apps with Copilot built in, paid yearly.$282/yr/seat
- Microsoft 365 Business Premium with CopilotAdds advanced security and device management, with Copilot built in, paid yearly.$384/yr/seat
Supabase
- Free500 MB database, 5 GB egress, 1 GB file storage; limited to 2 active projects, paused after 1 week idle.Free
- ProPer organisation, includes $10 monthly compute credit; usage-based beyond included quotas; no pausing.$25/mo
- TeamPer organisation, adds SOC2 and ISO 27001 compliance, SSO-style access controls and longer backups.$599/mo
Prices as the vendors list them. They change often; the final price is on their sites.
Who each is for
Choose Microsoft Outlook if…
Businesses and teams that work in Microsoft 365 and want email, calendar and contacts in the same place as Teams, Word and Excel.
Choose Supabase if…
Technical founders and developers who want a managed Postgres database with built-in auth, APIs, storage and realtime for a web or mobile app, with the option to self-host later.
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