QeyeT vs Tuta Mail

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.

Tuta Mail is an encrypted email service with apps for Android, iOS, Windows, macOS, and Linux, plus browser access. It includes an encrypted calendar and supports offline use; full offline support is listed among paid-plan benefits. The free plan provides 1 GB of storage, one calendar, and three labels. Revolutionary costs €3 a month billed annually and includes 20 GB, 15 extra email addresses, and three custom domains. Legend costs €8 a month billed annually and includes 500 GB, 30 extra email addresses, and 10 custom domains. Paid plans support calendar sharing and event invitations; desktop clients can import EML or MBOX files. Tuta says its clients are open source and auditable, and its data is stored on its servers in Germany in ISO 27001 certified data centers. The service uses post-quantum cryptography, and mail protocol support is listed as none. Family multi-user support can be activated through support on paid plans. Priority email support replies within one business day on Legend.