Product
Unicast
The messaging platform where recipients decide how they hear from you.
The problem
You're forcing your channel on everyone
Most messaging platforms let senders pick the channel and leave recipients with no say. People miss critical notifications because they arrived in the wrong place. Others feel overwhelmed by channels they never wanted. The sender wins; the recipient loses.
Our solution
Sender controls the message. Recipient controls the channel.
Unicast separates what is sent from how it is delivered. Senders register once and send through a single API or SMTP. Each recipient sets their own delivery preferences — email, WhatsApp, SMS, or a physical letter. Unicast routes accordingly. No more forcing a channel on someone who won't read it there.
Key capabilities
What Unicast does
Recipient-controlled delivery
Each recipient configures their preferred channel. When a message arrives, Unicast delivers to their chosen destination — not the sender's default. Recipients can change preferences at any time without involving the sender.
Physical post delivery
Recipients can opt to receive messages by letter. Unicast formats and dispatches physical mail automatically — useful for accessibility, compliance, or reaching people who simply prefer post.
Multi-channel routing
Email, WhatsApp, SMS, and post supported out of the box. Senders write once; Unicast delivers wherever the recipient wants. Add new channels without re-engineering any sending system.
SMTP and REST API ingest
Senders integrate via SMTP or REST API — whichever fits their existing stack. Unicast acts as a transparent routing layer between your systems and your recipients.
Multi-tenant architecture
Full isolation of senders, recipients, and message history per tenant. Platform admins manage across tenants from a single console.
Delivery tracking
Every message is logged with status, channel, and timestamps. Know instantly whether a message was delivered, to which channel, and when.
Under the hood
Built for scale
Built entirely in Go for maximum reliability and minimal operational footprint. Unicast is designed to sit alongside your existing infrastructure with no complex dependencies.
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