Tuta Mail

An encrypted email service from Germany with an end-to-end encrypted mailbox, contacts and calendar. The free account includes 1 GB of storage and offline access to mail.

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Free Enough

This app has paid upgrades — but its free tier is the complete product. Most people who use it never feel the need to pay.

The paid Revolutionary plan costs $3.99 a month or $39.99 a year and Legend costs $9.99 a month or $99.99 a year. The free mailbox is a complete email product with encryption and calendar included.

Something wrong?

Reports go to a human review queue. No timeline promised — this is a small pilot, but every report gets read.