Linq Blue is Linq's iMessage API. If you have been searching for one or the other and were not sure whether they were the same thing, they are: Linq is the company, Linq Blue is the blue-bubble messaging product it sells.
The naming matters because both terms get searched independently, and because there is a genuinely confusing neighbour — Blinq, an unrelated digital business card company one letter away that has no messaging product at all.
What Linq Blue actually does
- Blue-bubble send and receive, with webhooks for inbound.
- Group chats, tapbacks, voice notes and typing indicators — the full set of iMessage-native behaviours, not just plain text.
- RCS, SMS and voice behind the same API, so one integration covers the fallback channels too.
- A GoHighLevel integration, which almost nobody else in this category publishes.
- SOC 2 Type II, which Linq claims makes it the only iMessage API with it. Reported as their claim — no competitor makes a comparable one.
- A sandbox you can build against before signing a contract.
The company's history explains a lot of the search noise
Linq started as a digital business card company and pivoted into messaging, raising $20M in February 2026 on the strength of it. That pivot is why its former competitors — Blinq, Mobilo, Popl, HiHello, Switchit — now rank for iMessage API terms despite selling nothing of the kind. The full explanation.
Pricing
Linq publishes no pricing for Linq Blue. Billing is per line with no per-message metering, and getting a number requires a sales conversation. Setup fees have been reported but are not published.
That is the main thing to weigh. If you have a procurement process, the sales cycle is normal and the SOC 2 report is worth having. If you are a small business wanting to send appointment reminders next week, the absence of a published price is real friction — the full pricing breakdown sets it against the vendors that do publish.
Who it suits
Linq Blue fits when
- A security review is blocking your purchase
- You need iMessage, RCS, SMS and voice in one API
- You run GoHighLevel and want a real integration
- You have volume worth negotiating over
Look elsewhere when
- You want to see a price without a call
- You need to launch this month
- You are one business with one line
- A free tier to evaluate on matters more than compliance
For the alternatives that publish pricing, Blooio at $39/month and Photon are the usual answers. The head-to-head against the other big name is Linq vs Sendblue.
Where to go next
- [The full Linq review](/providers/linq-reviews) — features, pros, cons and the vendor claims reported as claims.
- [Linq pricing](/pricing/linq-reviews) — what is known, what is reported, and what you have to ask for.
- [Best iMessage API for CRM](/compare/best-imessage-api-for-crm) — where the GoHighLevel integration is the deciding factor.
- [Who sells an iMessage API](/answers/who-sells-an-imessage-api) — the whole field, if you are still shortlisting.
Common questions
- What is Linq Blue?
- Linq Blue is the product name for Linq's iMessage API — the service that sends and receives blue-bubble messages programmatically. Linq is the company; Linq Blue is the messaging product.
- Is Linq Blue the same as Linq?
- Linq Blue is part of Linq. Linq began as a digital business card company and pivoted into messaging infrastructure; Linq Blue is the iMessage side of that platform, alongside RCS, SMS and voice.
- How much does Linq Blue cost?
- Linq does not publish pricing. It bills per line with no per-message metering and requires a sales conversation. Setup fees have been reported.
- Does Linq Blue work with GoHighLevel?
- Yes. Linq publishes a GoHighLevel integration for Linq Blue, which lets you trigger blue-bubble sends from GHL workflows — currently unusual in this category.