May 25, 2026
Blue bubble, red flags
Launch HN: Chert (YC P26) – Twilio for iMessage
A startup wants brands in your blue bubbles — and commenters are already side-eyeing the spam
TLDR: Chert wants businesses to message people through iMessage so company texts feel more personal and get more replies. Commenters immediately turned it into a drama fest over spam, Apple possibly shutting it down, and whether anyone wants brands invading their most personal inbox.
A new Y Combinator startup called Chert is pitching itself as a way for companies to message people through iMessage, Apple’s texting app, instead of old-school business text blasts. The sales pitch is obvious: blue bubbles, read receipts, and chats that look more like a friend texting than a faceless company. But on Hacker News, the real fireworks started when people asked the question hanging over the whole idea: do we really want brands showing up next to Mom in our messages?
That split the room fast. One camp was skeptical from minute one, basically saying, “Cool demo, but what’s the actual magic here?” Another camp skipped straight to the apocalypse scenario: Apple is going to crush this, right? If your whole business depends on sneaking around the usual spam filters, commenters clearly think you’re building on very shaky ground. And then came the most relatable reaction of all: pure user dread. One person practically spoke for the entire exhausted internet by saying their iMessage inbox is already overflowing and they want fewer messages, not more.
The spiciest thread, though, was all about spam and abuse. People wanted to know how Chert stops bad actors, how banned senders stay banned, and whether users have to start the conversation first. In other words: is this the future of customer service, or just spam with a blue bubble makeover? Even the lightest comment had a little wink, praising the classic startup formula of calling yourself “X for Y.” Translation: the crowd saw the pitch, but the comments supplied the eye-rolls, the fear, and the memes.
Key Points
- •Chert says it enables businesses to build and deploy AI-driven messaging on iMessage at scale.
- •The article positions Chert against Twilio’s A2P SMS model, emphasizing peer-to-peer iMessage threads instead of carrier-filtered business SMS.
- •Chert says its iMessage threads support blue bubbles, read receipts, tapbacks, and placement in a user’s normal iMessage inbox.
- •The company says it manages delivery risk by rotating sending identities, warming them gradually, and capping daily volume per identity.
- •Chert offers a REST API, webhooks, native sync for common workflow events, and onboarding help for integrations.