Proton Mail vs. StartMail vs. mailbox.org Comparison Chart

Proton Mail is the simplest way to protect your communications with built-in end-to-end encryption. Prevent data breaches, stay compliant with regulations like GDPR and HIPAA, and earn client trust. Protected by Swiss privacy laws and trusted by over 50,000 businesses, Proton Mail keeps your business data confidential and under your control. With Proton Mail and Calendar, your team can securely manage their inbox and schedule, while your organization maintains a professional presence with support for custom email domains and personalized branding. And with the Easy Switch tool, migrating from Google or Microsoft is seamless, no IT expertise required.

mailbox is the digital workplace that offers highest data protection and security standards. We deliver digital sovereignty from Germany for the world. Our mailbox Suite brings together email, calendar, contacts, office, video conferencing and drive in one intuitive solution – running exclusively from German data centres. As a European provider, we completely reject tracking and data monetisation. We put our customers' business interests first, providing genuine digital independence without compromising on functionality or efficiency. mailbox serves businesses, public and educational institutions, resellers and private individuals who value security, compliance, data protection and intuitive usability. We're part of the Heinlein Group, which has been the expert in free and secure communication for over 30 years.