Coming soon to iOS

The Sero Inbox.Email that reads itself.

SeroMail pulls every account into one inbox, screens who gets through, and summarizes what is left. Then it drafts your replies in your own voice.

Vote on what ships first

Which of these would make you switch?

Upvote the features you actually need. The counts are live, and the order we build in follows them.

The Daily Brief

One card every morning, across every inbox: what is unread, who is waiting on a reply, and which new senders need screening.

Multi-inbox: Gmail and Outlook

Gmail and Outlook side by side in one list, split into Important and Everything else automatically. No more switching apps.

Replies in your voice

Tap the spark and SeroMail drafts the whole reply from the thread. Rewrite, shorten or shift the tone in another tap.

Sorted by importance

The inbox sorts by what matters, not by what landed last. A reply you are waiting on outranks a fresh newsletter.

The Screener

First-time senders wait at the door until you let them in. Spam and cold outreach never touch your inbox.

Search that reads your mind

“The invoice from the plumber” finds it even when none of those words are in the email. It all runs on your device.

AI Rules in plain English

“Send every receipt to Paper Trail.” Type the rule once in plain English and SeroMail runs it forever.

Ask SeroMail

“What did Marcus send about the term sheet?” One answer, pulled from every inbox at once, whatever folder it landed in.

Swipe to handle it

Flick any email to Archive, Reply Later or Set Aside. Clear a morning's inbox with one thumb.

Reply Later & Set Aside

Snooze anything you cannot get to now. It comes back to the top of the inbox exactly when you need it.

Private notes

Drop a note on any thread that only you can see. Context for next time, without a reply-all.

Missing something?

Get the Sero Inbox first.

Join the waitlist and tell us what your inbox actually needs.