The verdict
On the data we hold, Gmail comes out ahead. Here is why, point by point.
What the data says
- Both have an API and an MCP server, so either works with AI employees.
- In our Tech stack ranking, Gmail places 22 and Microsoft 365 57 of 72.
Side by side
| At a glance | ||
|---|---|---|
| Starts at | €6.80/mo | $7/mo |
| Free plan | Yes | Not known yet |
| API | Yes | Yes |
| MCP server | Yes | Yes |
| Links |
Plans and pricing
Gmail
- Free (personal Gmail)Free with a personal Google account.Free
- Google Workspace StarterGmail with your own domain, 30 GB per user; the Workspace business plan.€6.80/mo/seat
- Google Workspace Standard2 TB per user.€13.60/mo/seat
- Google Workspace Plus5 TB per user.€21.10/mo/seat
Microsoft 365
- Microsoft 365 Business BasicWeb and mobile Office apps, Teams, Outlook email and 1 TB OneDrive storage per user; up to 300 users.$84/yr/seat
- Microsoft 365 Business Standard with CopilotAdds desktop Office apps and Copilot in Word, Excel, PowerPoint, Outlook and Teams.$282/yr/seat
- Microsoft 365 Business Premium with CopilotAdds identity, device and threat security, and sensitive data protection.$384/yr/seat
Prices as the vendors list them. They change often; the final price is on their sites.
Who each is for
Choose Gmail if…
Solo founders and small B2B teams on Google Workspace who want reliable business email on their own domain, sitting next to Calendar, Drive and Docs.
Choose Microsoft 365 if…
A small or mid-size business that wants one licence for Office apps, business email, Teams and cloud storage, and is not tied to Google Workspace.
Other options worth a look
ToolCombines spreadsheet simplicity with database structure so teams build custom workflows, trackers and apps without code.Tech stack
From $20/mo yearlyFree planAffiliate link
ToolCombines documents, spreadsheets, and databases into one workspace for building custom trackers and internal tools.Tech stack
From $10/moFree plan
ToolGet instant answers to questions backed by live web search results and inline source citations.Tech stack
From $20/moFree plan
ToolBundle business email, shared documents, spreadsheets, and video meetings in one cloud subscription.Tech stack
From €6.80/moAffiliate link
ToolCall Claude models from your own code to build AI applications, agents, and automations.Tech stack
ToolCollects event data and routes it to your warehouse and 200+ business tools with open-source infrastructure.Tech stack
From $265/moFree plan