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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

Metric	Fastmail	Proton Mail
Score Winner: right	8.7	9.0
Δ 90 days	— flat	— flat
Parent & badge	IndependentIndie	IndependentIndie
Founded	1999	2014
Best for	Privacy seekers wanting no Google ads	privacy junkies who want real encryption
Price per mo Winner: right	$5.00/ mo	$3.99/ mo
Renewal multiplier	—	—
Tagline	Privacy-focused email, no Google, no ads	Swiss end-to-end encrypted mail, free tier is real

[02]

What works, what doesn't.

Per provider

Fastmail4 pros · 3 cons

+ Pros

✓Independent, no ads or email scanning
✓Strong custom domain support
✓Faster email protocol with JMAP
✓Solid calendar and contacts integration

– Cons

✗No end-to-end encryption
✗Australian jurisdiction might worry some
✗Web interface feels a bit dated

Proton Mail5 pros · 4 cons

+ Pros

✓Real end-to-end encryption
✓Swiss jurisdiction for privacy
✓Usable free tier, 1GB storage
✓Custom domains on paid plan
✓Independent, not corporate-owned

– Cons

✗IMAP needs Proton Bridge app
✗Full E2E only with Proton users
✗Slow search on encrypted mail
✗Pricey compared to Migadu/Posteo

Make the call

Pick one and go.

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

VisitFastmail ↗Score 8.7 VisitProton Mail ↗Score 9.0

← Read full Fastmail review·Read full Proton Mail review →

[03]

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