Proton Mail vs Superhuman
No clear leader: Proton Mail (75.0) and Superhuman (70.3) are within the 5-point margin; treat as a tie. The attribute-by-attribute breakdown below, with a source and date on every value, is the honest way to compare them.
Capabilities
Feature-by-feature on the axes that matter for email clients. “-” means undocumented, not absent.
What each one is
The product in its own terms, so the numbers below have context.
Proton Mail
A cloud-based email platform using end-to-end encryption to keep all messages private from Proton and advertisers, funded by subscriber revenue. It provides a permanent free tier with core email functionality, plus paid plans offering enhanced storage, custom domains, and integrated business services.
Superhuman
A productivity suite combining a fast email client, collaborative documents with built-in AI, and a proactive AI agent that integrates across web apps and tools you already use.
Pricing
List pricing as published by each vendor, with the date we read it. Always verify at the source before you buy.
Proton Mail
Free tier available. Paid plans starting at $12.99/user/month for business bundles.
- FreeFree
- End-to-end encryption
- Email and calendar access
- Workspace Standard$12.99/user/month, billed annually at $155.88
- 1 TB cloud storage
- 15 custom email domains
- VPN access for 10 devices
- 25 booking pages
- Password manager
- +1 more
Superhuman
From £10/member/month. Free tier available.
- FreeFree
- Chat with AI in all applications and tabs
- Writing assistance in 20+ languages
- Tone and voice adaptation
- Collaborative docs with tables, charts, Kanban boards, forms
- Doc automation with formulas
- Pro£10/member/month (annual) or £12/member/month (monthly)
- Unlimited paragraph rewrites and translations (15+ languages)
- AI-generated text detection and plagiarism checking
- Brand voice consistency enforcement
- Business£28–£33/member/month (exact amount depends on billing frequency)
- AI-powered inbox organization and smart replies
- Personalized email drafts
- CRM integrations (HubSpot, Salesforce, Pipedrive read-only)
- Unlimited doc automations and version history
- Data sync from Jira, GitHub, Figma into docs
- EnterpriseContact sales
- Team analytics and reporting
- Advanced security and admin controls
- SAML single sign-on
- Custom roles and permissions
- Data loss prevention
- +2 more
Platform & deployment
Where each product runs and how it can be hosted. A dash means undocumented, not unsupported.
Integrations
What each product connects to. Counts come from the vendor's own integration directory where one exists.
- Gmail
- Outlook
Proton Mail
- Yahoo
- Apple Mail
- Thunderbird
- Okta
- Microsoft Entra ID
- ADFS
- Edugain
- SimpleLogin
- Yahoo Mail
- Chrome
- Firefox
Superhuman
- Asana
- Ashby
- ClickUp
- Commerce Layer
- DeepL
- Demio
- Figma
- GitHub
- Gong
- Google Analytics
- Google Calendar
- Google Meet
- Google Translate
- Google Workspace Directory
- HeyGen
- HubSpot
- Jira
- Mermaid
- Miro
- Microsoft Outlook
- Microsoft Teams
- Outreach
- Pipedrive
- Salesforce
- +31 more
Proton Mail or Superhuman: which one depends on you
A composite score cannot know your constraints. Describe them and both get re-weighted against what you actually need, with the evidence behind every position.
Free to run, no account needed to start. How the evaluation works
Comparison generated from independently-sourced facts. Every value links to its source and retrieval date. See the method.