Communications

Programmable SMS, voice, chat and email as part of your stack.

This hub gathers the blocks of communication infrastructure: transactional and marketing email, chat and messaging platforms, notifications, in-app messaging and the channels through which a product talks to users and the team talks to itself.

Why it matters to an indie builder: communication is where retention is quietly decided. The password reset that never arrives, the receipt that lands in spam, the update nobody heard about, each is a channel problem, and each channel, email, push, SMS, in-app, has different delivery mechanics, costs and failure modes. The realistic pattern is a hub: events in the product fan out to the right channel, with delivery tracked and retries handled by a provider.

A realistic stack: transactional email on a specialist provider, product updates via a newsletter tool, transactional push through the platform SDKs, and in-app messaging for the things users should see inside the product, all triggered from one notification layer rather than scattered calls.

Trade-offs: every channel is another vendor and another compliance surface, and over-messaging burns the attention the channels exist to earn. Compare the email and chat blocks here for the depth of each channel.