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Build and deploy AI on iMessage to reach people at scale while maintaining quality, trust, and personalized interaction.
Hey! Is the 2BR on Pine still open?
Looking for a Sept 1 move-in.
Saturday morning works for me.
Pine Street · Tour
Sat 10:00 AM · Confirmed
Delivered
Chert
iMessage
Saw the launch, congrats!
We help GTM teams book meetings via iMessage.
10x reply rate vs cold email.
iMessage
First question to your team.
On it — pulling the numbers now.
Should have a draft by EOD.
Perfect. Free for 15 min next week?
Derrick
kicking off the launch thread
Gary
Heads up, moved you to Tuesday
Sent as SMS
Latest menu, ready to ship?
EXPLORE THE API
+ many more
Verified phone numbersMessage receiptsWebhooksCompliance audits
0%
average response rate on cold outbound
0%
response rate on warm outbound
<0 min
setup via our API and Webhooks
Order #4821 still hasn't shipped
Left the warehouse this morning. ETA Wednesday.
Can I move my haircut to Saturday?
Saw your post on scaling the AE team.
Built something that books meetings on iMessage.
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Chert
FAQ
Everything you
need to know.
Answers to the questions we hear most.
Is this real iMessage, or just SMS branded as iMessage?
Real iMessage. Outbound and inbound flow over Apple’s iMessage protocol with the blue-bubble UX your customers already trust. We fall back to SMS only if a recipient isn’t on iMessage, and we surface that distinction in the API so you always know which channel a message landed on.
How is this different from sending SMS through Twilio?
Twilio is an A2P SMS pipe: carrier-filtered, 10DLC-registered, and visibly automated. Chert delivers a peer-to-peer iMessage thread that opens with the blue bubble, supports read receipts and tapbacks, and lives in the same inbox as a recipient’s family and friends. Open and reply rates are categorically different because the channel is.
What about deliverability and spam flags?
Because iMessage is end-to-end and tied to Apple ID, it doesn’t inherit the carrier-side filtering that hammers A2P SMS. We rotate sending identities, warm them gradually, and cap volume per identity per day to stay well below the heuristics Apple uses to throttle abusive senders. Anyone promising "unlimited blast" volume is one ban away from disappearing.
How do I connect Chert to the tools my team already uses?
We expose a REST API and webhooks for every inbound and outbound event, so you can wire conversations into your CRM, sales tools, voice agents, or internal data store with a few hours of work. We also ship native sync for the common cases (lead created, meeting booked, opt-out received). If you’d rather not build, we’ll handle the integration during onboarding.
Let's talk
Build with
iMessage.
20-minute kickoff. We'll talk through your use case and work on integrating iMessage into your application.