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Fastmail vs Proton Mail

FastmailIndie
8.7/ 10
Higher score
Proton MailIndie
9.0/ 10
Across 4 measured dimensions: Fastmail wins 0, Proton Mail wins 2 (2 tie / n/a)
[01]

Side by side.

8 dimensions
MetricFastmailProton Mail
Score
Winner: right
8.79.0
Δ 90 days
— flat— flat
Parent & badge
IndependentIndie
IndependentIndie
Founded
19992014
Best for
Anyone leaving Gmail for a custom domainPrivacy-first users who want zero-access encryption by default
Price per mo
Winner: right
$5.00/ mo$3.99/ mo
Renewal multiplier
——
Tagline
Privacy-focused email, no Google, no adsSwiss end-to-end encrypted mail, free tier is real
[02]

What works, what doesn't.

Per provider
Fastmail4 pros · 3 cons
+ Pros
  • ✓Independent, privacy-respecting, no ads
  • ✓Excellent custom domain support
  • ✓JMAP protocol is genuinely faster
  • ✓Strong calendar/contacts integration
– Cons
  • ✗No end-to-end encryption (vs Proton/Tutanota)
  • ✗Australian jurisdiction concerns for some users
  • ✗Web UI looks dated
Proton Mail4 pros · 4 cons
+ Pros
  • ✓Genuine end-to-end encryption, Swiss jurisdiction
  • ✓Free tier with 1GB is actually usable
  • ✓Custom domain support on Mail Plus
  • ✓Independent ownership, non-profit foundation backed
– Cons
  • ✗IMAP requires the Bridge desktop app
  • ✗E2E only between Proton users
  • ✗Search of encrypted mail is slow
  • ✗Pricier than Migadu/Posteo for similar storage
Make the call

Pick one and go.

Both links are affiliate. Score doesn't move because of it.

VisitFastmail ↗Score 8.7VisitProton Mail ↗Score 9.0
← Read full Fastmail review·Read full Proton Mail review →
[03]

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