Microsoft 365 Business vs Tuta Business
In short: Tuta Business wins on privacy, they tie on price, and Microsoft 365 Business wins on features. The full comparison is below, last checked 25 October 2026.
Which should you choose?
- Choose Microsoft 365 Business if you want freedom to use the mail app you already like and features the other lacks, like POP3 as well as API.
- Tuta Business suits you best if you want end-to-end encryption built in; a company that isn't funded by advertising; and the lower price (About €6 per user a month).
| Feature | Microsoft 365 Business | Tuta Business |
|---|---|---|
| Overall | 2.5 | 4.0 |
| Privacy | 1.0 | 4.5 |
| Price | 2.5 | 2.5 |
| Features | 5.0 | 4.0 |
| Cheapest plan | Business Basic £5.40 per user a month, yearly, ex VAT | Essential About €6 per user a month |
| Free plan | No | No |
| Storage | 50 GB | 50 GB |
| Your own domain | ✓ Yes | ✓ Yes |
| End-to-end encryption | No | ✓ Built in |
| Company based in | United States | Germany |
| Your data is kept in | UK data centres for UK tenants (London, Cardiff, Durham) | Germany |
| Founded | 2011 | 2011 |
| Free trial | One month free on some plans | Unknown |
| Funded by advertising | Yes, or its parent company is | No |
| Works in any mail app | ✓ IMAP and SMTP | No, its own apps only |
| Calendar and contacts | ✓ Yes | ✓ Yes |
| Aliases | Yes | Yes |
| Open-source apps | No | ✓ Yes |
| Sign up without ID | No | No |
| White label | No | No |
| Reader offer | None | None |
| Last checked | 22 October 2026 | 25 October 2026 |
Want to add another? Open this in the compare tool.
The key differences
- On price: Microsoft 365 Business Business Basic at £5.40 per user a month, yearly, ex VAT, against Tuta Business Essential at About €6 per user a month.
- Data location: UK data centres for UK tenants (London, Cardiff, Durham) for Microsoft 365 Business, Germany for Tuta Business.
- The companies sit under different laws: Microsoft 365 Business in United States, Tuta Business in Germany.
- On encryption, Microsoft 365 Business doesn't encrypt mail end to end, whereas Tuta Business encrypts mail end to end.
- Mail apps: Microsoft 365 Business works in any mail app over IMAP; Tuta Business only works in its own apps.
- Microsoft 365 Business (or its parent company) makes money from advertising; Tuta Business doesn't.
Microsoft 365 Business and Tuta Business: your questions
Is Microsoft 365 Business more private than Tuta Business?
Tuta Business scores 4.5 out of 5 for privacy and Microsoft 365 Business 1. Tuta Business gives you end-to-end encryption built in, a company that isn't funded by advertising and open-source apps.
Is Microsoft 365 Business cheaper than Tuta Business?
Tuta Business is cheaper. Its Essential plan is About €6 per user a month, against £5.40 per user a month, yearly, ex VAT for Microsoft 365 Business's Business Basic. Check the renewal price before you pay, as some first-year prices go up.
Can I use my own domain with Microsoft 365 Business or Tuta Business?
Yes, both do. Microsoft 365 Business: Yes. Tuta Business: Yes.
Where is my email stored with Microsoft 365 Business and Tuta Business?
Microsoft 365 Business keeps it in the UK data centres for UK tenants (London, Cardiff, Durham). Tuta Business keeps it in Germany.
Can I use Microsoft 365 Business and Tuta Business in Apple Mail or Outlook?
Microsoft 365 Business works in any mail app over IMAP. Tuta Business only works in its own apps.
Recent price changes
- 27 July 2026 Microsoft 365 Business: £5.40 (UK price change from 1 July 2026)
- 1 June 2026 Microsoft 365 Business: £4.90
The latest headlines: Microsoft 365 Business news · Tuta Business news.
Also worth a look
Microsoft 365 Business vs mailbox.org · Tuta Business vs mailbox.org · Microsoft 365 Business vs Posteo · Tuta Business vs Posteo · Microsoft 365 Business vs Proton Mail · Tuta Business vs Proton Mail
How to switch
Moving to Microsoft 365 Business · Moving from Microsoft 365 Business. Or see all my switching guides.