Outlook.com vs Proton Mail

Outlook.com brings email, calendars, tasks, and contacts together, with web, desktop, and mobile access. Its free plan costs nothing and includes 15 GB of mailbox storage and core Outlook security features. Email aliases are available, but custom domains are not. Microsoft 365 Basic costs $1.99 a month, billed annually at $19.99, and includes 100 GB of mailbox storage, ad-free Outlook email and calendar, and 100 GB of cloud storage. Personal costs $9.99 a month, billed annually at $99.99, and includes 1 TB of cloud storage and desktop Office apps; a free trial is available. Family costs $12.99 a month, billed annually at $129.99, for 1 to 6 people, while Premium costs $19.99 a month, billed annually at $199.99, for up to six people. Personal and Family users can use the service on up to five devices simultaneously. Paid plans include advanced Outlook security features and OneDrive ransomware protection. Personal, Family, and Premium include desktop Word, Excel, PowerPoint, Outlook, and OneNote with Copilot. The product is marked unavailable in the viewer's market.

Proton Mail is an encrypted email service available on the web, Windows, macOS, Linux, iOS, and Android. Its free plan lists 1 GB of storage and one email address, although its FAQ says storage starts at 500 MB; the free tier is described as having the same security level as paid plans. The service uses end-to-end and zero-access encryption, with open-source apps and independent audits. It blocks email trackers and includes phishing and spam protection, password-protected messages, and link confirmation. Users can schedule, undo, or snooze emails and organize messages with folders, labels, and categories. Easy Switch imports email, calendars, and contacts from other providers. Paid plans support external email clients through IMAP and SMTP using Proton Mail Bridge. Mail Plus lists 15 GB of storage, 10 extra email addresses, and one custom domain. Paid subscriptions include a 30-day money-back guarantee, and the desktop app has a 14-day free trial. Paid plans display monthly billing; the listed starting price is 3.99 /user/mo.