Protonmail vs Fastmail Comparison
Protonmail
Starting at Contact for pricing
- Large Enterprises
- Medium Business
ProtonMail is a secure emailing service based in Geneva, Switzerland, founded in 2013. It ensures user data privacy by employing client-side encryption before content and information is sent to ProtonMail servers. Subscr…
Fastmail
Starting at Contact for pricing
- Free Trial
- Individuals
- Freelancers
Fastmail is a privacy-focused email hosting provider offering ad-free, tracking-free email with custom domains, calendars, and contacts for individuals, families, and businesses. Notable features include Masked Email for…
Protonmail vs Fastmail — at a glance
| Feature | Protonmail | Fastmail |
|---|---|---|
| Rating | 2.7 / 5 | — |
| Reviews | 793 | — |
| Starting price | Contact for pricing | Contact for pricing |
| Free trial | No | Yes |
| Free version | No | No |
| Best for | Large Enterprises, Medium Business, Small Business | Individuals, Freelancers, Small Business |
| Category | Email Encryption Software | Email Encryption Software |
| Platforms | SaaS/Web/Cloud, Mobile - Android, Mobile - iOS | Browser Based (Cloud), Mobile - Android, Mobile - iOS |
| API | — | — |
| Support modes | Online | Online, Business Hours |
| Certifications | GDPR | — |
| Data residency | EU | — |
Key differences between Protonmail and Fastmail
- Free trial: Fastmail offers a free trial; Protonmail does not.
- Target audience: Protonmail is built for Large Enterprises and Medium Business, while Fastmail targets Individuals and Freelancers.
- Deployment: Protonmail supports SaaS/Web/Cloud, Mobile - Android, Mobile - iOS; Fastmail supports Browser Based (Cloud), Mobile - Android, Mobile - iOS.
Protonmail vs Fastmail — find the better fit before you commit.
Which tool fits your team best
Which is actually cheaper for your team size
Where each product wins, per real buyers
Most Email Encryption Software tools look identical on paper. This comparison cuts to the differences that matter — pricing structure, team fit, and what real buyers found after signing up.
Biggest differences
Features
Pricing
Buying details
Security
Buyer feedback
Integrations
Product tour
Other options
Talk to an expert Talk to an expert | Talk to an expert Talk to an expert |
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Protonmail vs Fastmail: Biggest differences
Start here before you go deeper into features.
Best for secure, privacy-focused email with strong client-side encryption.
- You need end-to-end encrypted email for sensitive communications.
- Your team requires easy access via web, mobile, and Tor network.
- You prioritize open-source transparency and data privacy compliance.
- Your organization demands advanced enterprise email management features.
- You require clear, published pricing and extensive legacy system integrations.
Individuals, Freelancers, Small Business
Protonmail typically suits Large Enterprises and Medium Business. Fastmail tends to fit Individuals and Freelancers better. The right choice depends on your team size, workflow, and whether a free trial matters.
Description | ProtonMail is a secure emailing service based in Geneva, Switzerland, founded in 2013. It ensures user data privacy by employing client-side encryption before content and information is ... Read More about Protonmail | Fastmail is a privacy-focused email hosting provider offering ad-free, tracking-free email with custom domains, calendars, and contacts for individuals, families, and businesses. Notable ... Read More about Fastmail |
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Free Trial Availability |
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User RatingsBased on verified Spotsaas reviews | ||
Best Company Size | Small BusinessMedium Business | — |
Get pricing help | Get pricing help |
Software Demo
Demo |  Fastmail has not given any software demo yet If you're the owner of this profile, add your demo.Contact us |
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How do Protonmail and Fastmail Compare on Features?
Total Features | 7 Features | 8 Features |
|---|---|---|
Unique Features | No unique features | No unique features |
Get Quote | Get Quote |
Compare Protonmail and Fastmail on pricing
Review starting price, plan structure, and free-trial access side by side so you can see which option fits your budget and buying process.
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Pricing Page |  | Pricing information not available |
Protonmail vs Fastmail: Other Details
Organization Types supported |
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Platforms Supported |
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Modes of support |
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API Support |
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Get help choosing | Get help choosing |
Protonmail vs Fastmail Security & Compliance
Certifications, data handling, and security controls for IT and compliance evaluators.
SOC 2 | ✗ No | — |
|---|---|---|
HIPAA | ✗ No | — |
GDPR | ✓ Yes | — |
ISO 27001 | ✗ No | — |
Single Sign-On (SSO) | ✗ No | — |
Multi-Factor Auth (MFA) | ✓ Yes | — |
Data Encryption | ✓ Yes | — |
Data Residency | 🇪🇺 EU | — |
Protonmail User Reviews & Rating Comparison
User Ratings | (based on reviews) | |
|---|---|---|
Rating Distribution | ||
Spotsaas Editor’s POV generated by AI | Buyer sentiment Users appreciate ProtonMail's strong privacy features but express concerns over limited enterprise functionality and unclear pricing. What buyers like
Common complaints
| No expert review available for this product |
Pros and Cons |
| No pros or cons available for this product |
Positive Reviews | No reviews available for the product | No reviews available for the product |
| Negative Reviews | No reviews available for the product | No reviews available for the product |
Media and Screenshots
Screenshots |  6 Screenshots | No screenshots available. |
|---|---|---|
Videos |  3 Videos | No videos available. |
Top Alternatives to Protonmail and Fastmail in 2026
Alternatives |
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Disclaimer: This research has been collated from a variety of authoritative sources. We welcome your feedback at [email protected].
Frequently asked questions
- Which is better, Protonmail or Fastmail?
- undefined edges out the other on user ratings (undefined vs 2.7). That said, the best pick depends on your use case — use the comparison tables above to evaluate each dimension.
- Do Protonmail and Fastmail offer a free trial?
- Fastmail offers a free trial. Protonmail does not.
- What is the starting price of Protonmail vs Fastmail?
- Protonmail starts at Contact for pricing. Fastmail starts at Contact for pricing.
- What are the top alternatives to Protonmail?
- Top alternatives to Protonmail include Paubox Encrypted Email, Proofpoint Email Encryption, Appriver, ZixEncrypt, DataMotion Secure Email.
- What are the top alternatives to Fastmail?
- Top alternatives to Fastmail include NeoCertified, DMARC Report, Encyro, SenditCertified, ZixEncrypt.