Thriving 
SW Email that feels like texting — a free, open-source iOS and iPadOS email client that renders every thread as a conversation of bubbles. No backend, no account.
https://excelano.com/zirbe ↗ HEALTH ? 86 / Healthy
Thriving SW // readme
Zirbe
An open-source email client for iPhone and iPad that looks and feels like a texting app, while keeping real email underneath. Standards-only, no backend, free. On iPad the conversation list sits beside the open conversation.
The name
Zirbe is German for the Swiss stone pine, the pine of the Alps. The name continues a lineage of text-mode mail clients that runs Elm → Pine → Alpine, and lands on another pine. The hidden meaning is the point: it reads like a coined word and rewards anyone who looks it up.
What it is
A conversation in Zirbe is an email thread, not a person. A thread is
identified by the RFC 5322 Message-ID, In-Reply-To, and References
headers and shown like a named group chat: the subject is the title, the
people on From/To/Cc are the members, and each message is one bubble in
time order. The same person writing five different-subject threads produces
five conversations, which is correct email behavior. Starting a new
conversation requires naming it, and that name is the subject.
Principles
Apple Messages is the aesthetic muse, never a clone. I implement only what the email RFCs define (5321 SMTP, 5322 message format,…