Launch HN: Chert (YC P26) – Twilio for iMessage

Chert, a YC-backed startup, is building an API for businesses to send, receive, and automate iMessage conversations at scale. The company addresses challenges in iMessage infrastructure, targeting high-volume use cases like customer service and cart abandonment in sectors such as DTC brands and home services. It integrates with SMS/RCS systems, CRMs, and tools like Slack, enabling scalable iMessage communication.