Proton Mail vs QeyeT

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.

QeyeT combines email, chat, calendar and meetings for personal and organizational use. It supports Android, iOS, Linux, web and Windows, and offers custom domains and encrypted calendars. Mail between QeyeT addresses is encrypted for recipients’ devices, but messages sent to Gmail or Yahoo use the normal internet mail system and are not described as end-to-end encrypted. Mail includes folders, search, rules, rich compose, secure links and delivery receipts. Calendar supports events, RSVP and one-tap Teams joining; chat includes one-to-one and group messages, voice and video calls, files and voice notes. Authorized devices store mail, chat, contacts and calendar state in encrypted local vaults. Six recovery words can restore identity on a new device, but cannot restore history deleted from all devices and backups. A free preview is listed, though pricing details vary across plan listings. Organizations can request a scoped pilot with terms defined together. QeyeT says independent review, testing and formal operational work remain necessary before it represents the product as enterprise-certified.