ALL YOUR MAIL.
ONE INBOX.
Gmail, Outlook, and any IMAP mailbox you already own — read, searched and answered in one place, on your phone or your desktop.
BURST doesn't host your email. It connects to the accounts you already have, so nothing moves and nothing breaks.
Free plan: 1 mailbox · no card required
01 // Connect
Bring your accounts
Enter IMAP and SMTP details for any provider. Folders are discovered automatically and mail starts arriving in the background — no browser tab has to stay open. (Google and Microsoft one-click sign-in is built but not yet switched on; both connect over IMAP and SMTP today.)
02 // Read
Built for the phone
Wide HTML newsletters are scaled to fit instead of scrolling sideways. Remote images stay blocked until you tap. Swipe to go back; archive, star or delete from a bar that's always in thumb reach. Install it to your home screen and it behaves like an app.
03 // Know
Told, not checked
Every mailbox is checked every couple of minutes and a push notification tells you what arrived and where. A banner says outright when a mailbox has stopped syncing, so an empty inbox never quietly means a broken one.
Also included
- Conversation threading across accounts
- Labels, colour-coded per account
- Search across every connected mailbox
- Attachments, download and send
- Per-account signatures
- Undo send
What we do with your mail
Your messages are stored on our server — that's what makes search and background sync work. They are never sold, never handed to advertisers, and never used to train a model.
AI assist is the one feature that sends text anywhere else, and only the single message you point it at, only when you ask it to.
TWO PLANS. NO SURPRISES.
One mailbox is free forever. Pro is for the reason you came here: more than one.
Free
Try the whole thing
- 1 connected mailbox
- Threading, labels and search
- Push notifications
- Attachments and signatures
- Install to your home screen
Pro
For more than one address
- Up to 25 connected mailboxes
- Everything in Free
- Snooze and scheduled send
- Filters and rules
- Vacation responder
- AI assist for replies
Cancel any time. If Pro lapses, nothing is deleted — your mailboxes stay connected and readable; you just can't add new ones until you resubscribe.
Before you sign up
BURST is not an email host. It doesn't give you an address and can't replace your provider. It's the client you read all of them in.
Your provider's rules still apply. Every account connects over IMAP and SMTP, which has to be switched on at the provider — some free accounts don't offer it, and Gmail and Outlook each need an app password rather than your normal one.
Pro tops out at 25 mailboxes. Sync runs one mailbox at a time, so an honest ceiling beats an "unlimited" that quietly starves.
