About This Launch
Aster Mail is end-to-end encrypted email with a free tier (10 GB, aliases and a custom domain). The apps are open source under AGPL, though the server code is not public. Mail between Aster accounts gets post-quantum protection, and PGP is used when recipients publish a key. Available on Windows, macOS, Linux, Android and web; iOS is in TestFlight beta.
Why I Built This
Aster Mail aims to make private, encrypted email simple enough for everyone, with a generous free plan.
Launch Details
CategorySaaS
StageLive
ListedNovember 7, 2026