Microsoft 365 Business vs Krystal
In short: Krystal wins on privacy, Microsoft 365 Business wins on price, and Microsoft 365 Business wins on features. The full comparison is below, last checked 25 October 2026.
Which should you choose?
- Krystal suits you best if you want a company that isn't funded by advertising and a provider that's been going since 2002.
| Feature | Microsoft 365 Business | Krystal |
|---|---|---|
| Overall | 2.5 | Not rated |
| Privacy | 1.0 | 2.5 |
| Price | 2.5 | Not rated |
| Features | 5.0 | 4.5 |
| Cheapest plan | Business Basic £5.40 per user a month, yearly, ex VAT | Email hosting Not confirmed |
| Free plan | No | No |
| Storage | 50 GB | Not confirmed |
| Your own domain | ✓ Yes | ✓ Yes |
| End-to-end encryption | No | No |
| Company based in | United States | United Kingdom |
| Your data is kept in | UK data centres for UK tenants (London, Cardiff, Durham) | United Kingdom |
| Founded | 2011 | 2002 |
| Free trial | One month free on some plans | 60-day money-back guarantee |
| Funded by advertising | Yes, or its parent company is | No |
| Works in any mail app | ✓ IMAP and SMTP | ✓ IMAP and SMTP |
| Calendar and contacts | ✓ Yes | ✓ Yes |
| Aliases | Yes | Yes |
| Open-source apps | No | No |
| Sign up without ID | No | No |
| White label | No | Unknown |
| 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 Krystal Email hosting at Not confirmed.
- Microsoft 365 Business comes with 50 GB of storage and Krystal with storage not confirmed.
- Your mail is stored in the UK data centres for UK tenants (London, Cardiff, Durham) with Microsoft 365 Business, and in the United Kingdom with Krystal.
- Microsoft 365 Business is based in the United States and Krystal in the United Kingdom, so different privacy laws apply.
- Only Microsoft 365 Business is part of an advertising business.
Questions people ask
Which is more private, Microsoft 365 Business or Krystal?
Krystal scores 2.5 out of 5 for privacy and Microsoft 365 Business 1. Krystal gives you a company that isn't funded by advertising.
Do Microsoft 365 Business and Krystal work with my own domain?
Yes, both do. Microsoft 365 Business: Yes. Krystal: Yes.
Where do Microsoft 365 Business and Krystal keep my email?
Microsoft 365 Business keeps it in the UK data centres for UK tenants (London, Cardiff, Durham). Krystal keeps it in the United Kingdom.
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 · Krystal news.
Not sold on either? Try these
- mailbox.org4.5 out of 5 overall
- Proton Mail for Business4.0 out of 5 overall
- Tuta Business4.0 out of 5 overall
Microsoft 365 Business vs mailbox.org · Krystal vs mailbox.org · Microsoft 365 Business vs Proton Mail for Business · Krystal vs Proton Mail for Business · Microsoft 365 Business vs Tuta Business · Krystal vs Tuta Business
Moving your email
Moving to Microsoft 365 Business · Moving from Microsoft 365 Business. Or see all my switching guides.