Fastmail vs Krystal
On privacy it's Krystal. On price it's Fastmail. On features it's Fastmail. Here's everything side by side, last checked 25 October 2026.
Should you pick Fastmail or Krystal?
On the facts I track, these two are very close. Try both free where you can, and pick the one whose apps you like using.
| Feature | Fastmail | Krystal |
|---|---|---|
| Overall | 3.0 | Not rated |
| Privacy | 2.0 | 2.5 |
| Price | 3.5 | Not rated |
| Features | 5.0 | 4.5 |
| Cheapest plan | Individual $5 a month, yearly | 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 | 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 | Masked email and aliases | 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
- Fastmail's cheapest plan is Individual ($5 a month, yearly); Krystal's is Email hosting (Not confirmed).
- Space: Fastmail gives 50 GB of storage, Krystal storage not confirmed.
- Data location: EU (Amsterdam) for UK customers, with a US replica and US backups for Fastmail, United Kingdom for Krystal.
- The companies sit under different laws: Fastmail in Australia, Krystal in United Kingdom.
- Aliases: Fastmail offers masked email and aliases, Krystal yes.
Common questions
Is Fastmail more private than Krystal?
Krystal scores 2.5 out of 5 for privacy and Fastmail 2.
Can I use my own domain with Fastmail or Krystal?
Yes, both do. Fastmail: Yes. Krystal: Yes.
Where is my email stored with Fastmail and Krystal?
Fastmail keeps it in the EU (Amsterdam) for UK customers, with a US replica and US backups. Krystal keeps it in the United Kingdom.
Price changes and news
Neither price has changed since my first check on 22 October 2026.
The latest headlines: Fastmail news · Krystal news.
Also worth a look
Fastmail vs mailbox.org · Krystal vs mailbox.org · Fastmail vs Posteo · Krystal vs Posteo · Fastmail vs Proton Mail · Krystal vs Proton Mail
Moving your email
Moving to Fastmail · Moving from Fastmail. Or see all my switching guides.