Fastmail for Business vs Krystal
On privacy it's Krystal. On price it's Fastmail for Business. On features it's Fastmail for Business. Here's everything side by side, last checked 25 October 2026.
Which should you choose?
There's little between them on the facts I check, so it comes down to which apps feel right to you.
| Feature | Fastmail for Business | Krystal |
|---|---|---|
| Overall | 3.0 | Not rated |
| Privacy | 2.0 | 2.5 |
| Price | 3.5 | Not rated |
| Features | 5.0 | 4.5 |
| Cheapest plan | Standard $5 per user a month ($4.17 yearly) | Email hosting Not confirmed |
| Free plan | No | No |
| Storage | 50 GB | Not confirmed |
| Your own domain | ✓ Up to 100 | ✓ Yes |
| End-to-end encryption | No | No |
| Company based in | Australia | United Kingdom |
| Your data is kept in | EU (Amsterdam) for UK customers, with a US replica and US backups | United Kingdom |
| Founded | 1999 | 2002 |
| Free trial | 30 days free | 60-day money-back guarantee |
| Funded by advertising | No | 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 | Offer 10% off your first year, plus a free trial of up to 30 days | None |
| Last checked | 22 October 2026 | 25 October 2026 |
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The key differences
- On price: Fastmail for Business Standard at $5 per user a month ($4.17 yearly), against Krystal Email hosting at Not confirmed.
- Fastmail for Business comes with 50 GB of storage and Krystal with storage not confirmed.
- Data location: EU (Amsterdam) for UK customers, with a US replica and US backups for Fastmail for Business, United Kingdom for Krystal.
- Fastmail for Business is based in Australia and Krystal in the United Kingdom, so different privacy laws apply.
Fastmail for Business and Krystal: your questions
Which is more private, Fastmail for Business or Krystal?
Krystal scores 2.5 out of 5 for privacy and Fastmail for Business 2.
Do Fastmail for Business and Krystal work with my own domain?
Yes, both do. Fastmail for Business: Up to 100. Krystal: Yes.
Where do Fastmail for Business and Krystal keep my email?
Fastmail for Business keeps it in the EU (Amsterdam) for UK customers, with a US replica and US backups. Krystal keeps it in the United Kingdom.
Prices and the latest news
Neither price has changed since my first check on 22 October 2026.
The latest headlines: Fastmail for Business news · Krystal news.
Also worth a look
Fastmail for Business vs mailbox.org · Krystal vs mailbox.org · Fastmail for Business vs Posteo · Krystal vs Posteo · Fastmail for Business vs Proton Mail · Krystal vs Proton Mail
Moving your email
Whichever you choose, the move follows the same steps. Pick your two providers for the steps.