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Proton Mail vs Sealit

Updated December 15, 2025

Proton Mail vs Sealit: Which is best for you?

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1 million+ businesses helped
2 million+ verified software reviews
Starting Price
$6.99

per month

$10.00

per month

Free Trial
Free Version
Screenshots
and Demo
Product Screenshot
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Product Screenshot
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Top Rated
  Features
Encryption
4.63
Threat Protection
4.52
Email Attachment Protection
4.50
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Data Security
5.0
Encryption
4.93
Alerts/Escalation
4.92
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Integrations
Microsoft Outlook
Microsoft Outlook
Thunderbird
Thunderbird
Rambox
Rambox
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Microsoft Outlook
Microsoft Outlook
Gmail
Gmail
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Pros / Cons
  • I like that ProtonMail doesn’t track me or read my emails, which is important when I’m dealing with lead lists or supplier conversations.
  • There’s no real integration with tools like ActiveCampaign (my email solution) or Google Sheets (my data solution), which makes it harder for me to slip it into my broader marketing stack.
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  • I like the secure system where we can encrypt and decrypt our email, there is an analytics for us to see the opening of our emails.
  • Love the ease of use, I was always looking for a reliable, yet affordable zero trust secure email system, and sealit checks the right boxes, The product is affordable, generous with limits and teams and provides a total peace of mind when you send out that confidential email knowing that you would be kept in the loop all along the way, and you are in control even after hitting the send button.
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Ease-of-Use
4.4/ 5
Highest performing feature
in the comparison
4.7/ 5
Value for Money
4.2/ 5
Highest performing feature
in the comparison
4.9/ 5
Customer Support
4/ 5
Highest performing feature
in the comparison
4.9/ 5
Functionality
4.3/ 5
Highest performing feature
in the comparison
4.6/ 5
Support Options
Email/Help Desk
FAQs/Forum
Knowledge Base
Phone Support
24/7 (Live Rep)
Chat
Email/Help Desk
FAQs/Forum
Knowledge Base
Phone Support
24/7 (Live Rep)
Chat
Training Options
In Person
Live Online
Webinars
Documentation
Videos
In Person
Live Online
Webinars
Documentation
Videos
FrontRunners
N/A
N/A
Advisor
  Recommendations
N/A
N/A
Ideal Customer Size
Small
Medium
Large
Small
Medium
Large
Deployment Options
Cloud, SaaS, Web-Based
Desktop - Mac
Desktop - Windows
Desktop - Linux
Desktop - Chromebook
On-Premise - Windows
On-Premise - Linux
Mobile - Android
Mobile - iPhone
Mobile - iPad
Cloud, SaaS, Web-Based
Desktop - Mac
Desktop - Windows
Desktop - Linux
Desktop - Chromebook
On-Premise - Windows
On-Premise - Linux
Mobile - Android
Mobile - iPhone
Mobile - iPad