Proton Mail alternatives
On the evidence we track, the strongest alternative to Proton Mail is Superhuman at 70/100. Proton Mail itself ranks #1 of 10 in email clients. Every product below is scored on the same independent signals, so the ranking is comparable rather than a matter of opinion.
Ranked alternatives to Proton Mail
- 1Superhumanvs Proton Mail →
An integrated suite combining email, writing assistance, document collaboration, and AI agents that work across your existing applications
medium · 73% - 2Canary Mailvs Proton Mail →
An email client that adds end-to-end encryption, phishing protection, and tracker blocking to your existing email accounts
high · 75% - 3vs Proton Mail →
- 4Mailspringvs Proton Mail →
An open-source, lightweight email application for Windows, Mac, and Linux with a focus on efficiency and local processing
medium · 65% - 5vs Proton Mail →
- 6Spark Mailvs Proton Mail →
An intelligent email client that filters distractions so you can focus on priority messages
medium · 74% - 7Mozilla Thunderbirdvs Proton Mail →low · 44%
- 8Edison Mailvs Proton Mail →
A unified email client that consolidates multiple accounts into one manageable inbox.
medium · 50% - 9vs Proton Mail →
Not sure which of these fits?
This ranking uses our balanced weighting. Say what actually matters to you (budget, compliance, self-hosting, team size) and the same email clients get reordered against that instead.
Free to run, no account needed to start. How the evaluation works
Why these ones
An alternative here means a product in the same category as Proton Mail (Email Clients), ranked by the vioscaleAI composite: a confidence-weighted blend of independent signals such as adoption, release activity, pricing transparency and security posture. There are no user reviews in it, and no vendor can pay to appear or to rank higher. Where we have not confirmed something, we show that rather than guessing.
Generated . See the method for how the composite is built, and why we are independent.