One assistant for your email, WhatsApp, and phone.
Zylch reads your conversations, remembers every contact, and tells you what matters — on your Mac or PC. Your data stays on your machine.
Prefer the terminal? Run the CLI. See pricing.
Alpha — installers are not yet code-signed; the install guide shows how to bypass the first-launch warning.
IMAP + SMTP for Gmail, Outlook, iCloud, Yahoo, and any custom host. Zylch fetches your inbox, full-text search, threads, drafts — and flags the replies that actually need you.
Scan a QR code to sync your WhatsApp chats. Contacts, history, and messages land in the same local store as your email — one view across channels.
Connect MrCall and Zylch answers inbound calls, transcribes, and can place outbound calls on your behalf. The conversation joins the same contact timeline as email and WhatsApp.
Zylch stores your mail, chats, and memory in SQLite under ~/.zylch/. Nothing syncs to our cloud. Bring your own LLM key (Anthropic or OpenAI) — Zylch talks to the provider directly, and you see exactly what goes over the wire.