OwnMail vs Tuta 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.

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.