Review / Hosted API
Linq review
The enterprise-leaning option, and the only one advertising SOC 2 Type II.
Linq sells messaging infrastructure — iMessage, RCS, SMS and voice behind one API — aimed at teams shipping agent-based and AI applications. It is the most enterprise-shaped vendor in the category: it leads with uptime and latency numbers, advertises SOC 2 Type II compliance, and has moved away from per-message billing. The trade-off is that you cannot see a price without talking to someone.
What it is good at
- SOC 2 Type II is a genuine differentiator if you have a security review to pass.
- iMessage, RCS, SMS and voice behind a single API.
- Group chats, tapbacks, voice notes and typing indicators are all stated plainly.
- A sandbox lets you build before you commit to a contract.
Where it will bite you
- No published pricing. For a small business, a sales call to learn the number is friction.
- Reported setup fees put it out of reach for the smallest operations.
- Enterprise positioning means the product is optimised for buyers who are not you, if you run a salon.
What Linq claims
Reported as the vendor's own marketing claims. We have not independently reproduced these numbers, and neither should you treat them as benchmarks.
- The only SOC 2 Type II iMessage API in existence
- Under 120ms latency with 99.95% uptime
Tracking links with Linq
UTM note
With four channels behind one API, put the delivered channel in utm_source and keep utm_campaign constant so you can compare channels inside a single campaign.
Whatever you send with, build the URL from one helper so tagging is consistent across every job and campaign. Open the UTM builder to generate one now.
Still weighing options?
The comparison table puts all five side by side.