Send Blasts
Sign in to compose and broadcast screen alerts to your roster. Works on phones, tablets, and desktop browsers — no Chrome extension required to send.
This phone-approved sign-in is LoginBlasts — your customers could sign in to your app the same way. Add it to your app at blasts.dev →
First time sending Blasts from your phone?
Web registration for new senders is rolling out next. If you already registered in the extension on a desktop, sign in above. Otherwise, start web signup below.
Create Sender Inbox on WebYour inbox lives on your devices — we never hold a readable copy, to maintain your privacy. The portal is a convenience for sending; reading and replying stay in the Blasts extension and phone app.
Recipients still install the free Chrome extension to receive screen alerts. This portal is for sending only.
Sending only, by design — your inbox lives on your devices. We never hold a readable copy.
Compose Blast
Leave filters empty to reach your full connected roster.
Demographic filters (business senders)
Connect mailboxes (SES, Microsoft 365, Gmail rotation) in the desktop extension, then enable "Sync sending accounts to cloud" to use them here.
Add texting providers (Twilio, Telnyx, Plivo…) in the desktop extension, then enable cloud sync to text from here.
3 blast credits instead of 1 blast credit will be debited per recipient.