OwnMail vs Proton Mail

OwnMail is an encrypted email service for Android, iOS, and the web, with user-controlled keys, custom domains, and an AI assistant. The service says messages use hybrid RSA and ML-KEM-768 encryption. Users can create unlimited aliases and send or receive through any alias. The assistant answers natural-language inbox questions, can be disabled, and runs inside the encrypted mailbox without training on user data. A free account provides an @ownmail.ai address and 1 GB of encrypted storage without a credit card. The Free plan costs nothing, billed monthly, and includes core features subject to fair use with limited AI history and daily queries. Essential costs $4.99 a month for 10 GB of searchable encrypted history; Pro costs $9.99 a month for 50 GB. Users can export or delete data and download mailboxes in standard formats. Attachments can reach 200 MB. Gmail import maps labels to folders. The Progressive Web App installs from a browser, works offline, and supports fingerprint or Face ID unlock. A 14-day trial is listed.

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.