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iMessage

Send and receive iMessages from a dedicated Apple-registered number, with SMS/RCS fallback, opt-in links, groups and the unified inbox


Send and receive iMessages from a dedicated number that Zernio orders for you on Apple-registered infrastructure. Conversations thread into the same inbox as WhatsApp, SMS and your social DMs, so the send call, webhooks and automations you already use apply unchanged. Contacts who are not on iMessage get the same message as SMS or RCS from the same number.

iMessage is available to every workspace on usage-based billing. Order a sender from the dashboard or the API and it is live within minutes for instant numbers, or within hours for carrier-assigned ones.

Quick Reference

PropertyValue
SenderA dedicated number in the US or UK, ordered through Zernio (or an email handle through the API)
ActivationInstant for numbers listed as available now; otherwise a few hours, carrier-assigned
Message typesText, images, videos, files, voice notes, location pins, contact card
iMessage extrasBubble subject, screen and bubble effects, replies, tapbacks and emoji reactions, edit (15 min), unsend (2 min)
FallbackSMS or RCS from the same number when the contact is not on iMessage; call forwarding
New contactsYes, paced by Apple (about one new contact every 15 minutes per sender, first message without links or attachments)
Group chatsYes: reply, rename, photo, add and remove participants
Opt-inDeep links, hosted page, tracked links with parameters; STOP and START handled automatically
Broadcasts and automationsYes, through the shared broadcasts, workflows and sequences APIs
Price$200 per sender per month, billed while active from activation, plus the connected-account fee

How it fits together

  1. Order a sender. Order a number on a profile; it appears as an imessage account once active.
  2. Bring contacts in. Share an opt-in link so contacts text you first, or message new contacts directly within Apple's pacing.
  3. Message. Send and receive through the inbox; delivery, reactions and inbound messages arrive on your webhooks.

In This Section

Senders

Order a number, instant activation, registering a sender you own, settings and cancellation

Inbox

What you can send and receive: media, effects, reactions, edit and unsend, groups, channel override

Opt-in & Audience

Opt-in links, tracked links, STOP and START, the audience list

Pricing & Limits

What a sender costs, sending pace, message limits and common errors

Related Endpoints

  • Order an iMessage sender - Get a dedicated number on a profile
  • List available numbers - Numbers that activate the moment you order
  • Create an opt-in link - Tracked link that opens Messages with a prefilled text
  • List audience - Contacts who have messaged a sender, with subscription state
  • Send a message - Same inbox endpoint as every other channel
  • Start a group chat - Group creation and management
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Media & Limits

WhatsApp media formats and size limits, what the API does not expose, and the Meta error codes you will meet, each with its fix.

Senders

Order a dedicated iMessage number, pick one that activates instantly, register a sender you already own, and manage or cancel it

On this page

Quick ReferenceHow it fits togetherIn This SectionRelated Endpoints