Private preview

Join the Atomside preview

We are opening to a small group of teams first, and setting each one up by hand.

What you get in the preview

  • A test key straight away. Real proofs, nothing posted, no card.
  • A live key once your sender name and return address are verified.
  • Your first live letter free, posted to your own address.
  • After that, letters from 15 credits (£1.50). How credits work

To join, email hello@atomside.com.

In the meantime

  • Letters

    How a letter goes out, and the record that comes back.

  • Pricing

    How credits work, the packs, and what is always free.

  • Trust

    Who can send, what may not be sent, and what we keep.

  • Docs

    The quickstart, in four steps.