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For sales outreach, iMessage offers richer signals than SMS — native delivery and read receipts, typing indicators, reactions, and high-quality media over Apple’s data network — but it only reaches people on Apple devices, so the strongest strategy is to send iMessage where it’s available and fall back to SMS for everyone else. Tuco AI does exactly that: it checks iMessage availability per contact, sends blue-bubble iMessage when possible, and routes the rest to SMS automatically.

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Side-by-side comparison

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What the response-rate claims actually say

iMessage vendors commonly report much higher open and response rates for iMessage than SMS — figures like “~3–5× the response rate” appear across the industry. Treat these as provider-reported marketing figures, not independently audited statistics. One nuance worth knowing: the widely-quoted “SMS has a ~98% open rate” number is really a delivery-rate estimate — SMS has no true, measurable read receipt, so no platform can actually measure SMS “opens.” iMessage, by contrast, exposes native read receipts when the recipient has them enabled, which is one reason it gives sales teams clearer engagement signals.

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When to use which

  • Use iMessage for higher-touch outreach where read receipts, reactions, and voice notes improve the conversation — and for contacts you’ve verified are on iMessage.
  • Use SMS as the universal fallback so contacts on Android or without iMessage still get the message.
  • Use both, automatically — let Tuco verify iMessage availability per contact and pick the channel, with SMS fallback built in.

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Frequently asked questions

iMessage gives richer engagement signals (delivery and read receipts, typing indicators, reactions, better media) but only reaches Apple devices. SMS reaches every phone. The best results come from using iMessage where available and SMS as fallback — which Tuco automates.
Providers attribute it to the richer, more personal feel of blue-bubble threads and to visible read receipts that let reps time follow-ups. These are vendor-reported figures, so validate against your own results.
No. US A2P SMS requires 10DLC brand/campaign registration because it runs over carrier networks. iMessage runs over Apple’s network and isn’t part of the carrier A2P system. You still must follow consent and opt-out rules — see the compliance guide.
Tuco detects it during the availability check and sends that contact over SMS instead, so nobody is missed regardless of device.

Automate both channels

Set up iMessage-first outreach with automatic SMS fallback.