Sending a single message is straightforward. Ensuring reliable delivery of millions of messages presents a significant engineering challenge.
Calls are ignored. Emails go unread. Meanwhile, your customer is already texting someone else. Most businesses don't lose customers because of a bad product. They lose them because they stop communicating. Great follow-up keeps customers engaged from first contact to purchase.
iMessage vs SMS for business messaging in 2026: read rates, cost, security, features, and deliverability compared — plus how to use both with automatic fallback.
Short answer: no — Twilio can't send iMessage, and no SMS API can. Here's why, what Twilio is actually great for, and how to send real blue-bubble iMessages (plus a hybrid mode that uses both).
Cold SMS gets you reach; iMessage gets you replies. Hybrid mode sends cold outbound over A2P SMS, then automatically continues on a blue-bubble iMessage line the moment a lead replies — the scale of A2P with the conversation quality of P2P.