Pricing in this category is unusual in two ways, and both matter more than the headline number. It is per line, not per message. And the published price is often not the price you will pay, because the cheap tier frequently cannot do outbound.
Published pricing, as of August 2026
| Provider | Entry price | Model | Catch |
|---|---|---|---|
| Photon | Free tier; $25/mo Pro | Flat, per line above Pro | Business tier at $250/line adds dedicated lines and outreach |
| Blooio | $39/mo shared | Flat, unlimited messages | Dedicated line is $289/mo |
| LoopMessage | ~$60/mo base | Base plus add-ons | Sender name, number, SMS, RCS each add recurring cost |
| Sendblue | $100/line/mo | Per line | Entry plan is reply-only. Outbound needs the enterprise quote |
| Sendblue Enterprise | Quote only | Per line | Reported near $1,000/line/mo plus a reported $2,000 setup fee |
| Linq | Not published | Per line, no metering | Requires a sales conversation; reported setup fees |
| BlueBubbles | $0 | Self-hosted | You supply and operate the Mac |
The reply-only trap
The most expensive mistake in this category is budgeting from a published entry price that turns out to be inbound-only. If your use case is appointment reminders, review requests or any other message you initiate, confirm in writing that the plan you are pricing supports outbound before you build against it.
Why per line and not per message
Coming from SMS, per-line pricing feels strange. It follows directly from the architecture. A provider's scarce resource is not bandwidth — it is trusted Apple accounts on real hardware. Each line is a real identity that took effort to establish and can be flagged. Messages over that line are close to free; the line itself is the cost.
SMS economics
- Per segment, fractions of a cent
- Cost scales with volume
- Carrier fees and A2P registration on top
- Cheap to start, expensive at scale
iMessage API economics
- Per line, per month
- Cost scales with lines, not messages
- No carrier fee — Apple charges nothing to send
- Expensive to start, cheap at scale
The practical consequence: iMessage gets cheaper per message the more you send, which inverts the instinct you have from SMS. At 200 messages a month a $39 line is 20 cents each. At 20,000 it is a fifth of a cent. Run your own numbers with iMessage vs SMS cost.
Costs that are not on the pricing page
- Setup fees. Reported at both Sendblue and Linq. Ask explicitly; they are rarely published.
- Add-ons. LoopMessage's model in particular means the base price and the real price can differ substantially once you add a sender name, a number and fallback channels.
- Extra lines. Volume, deliverability and team structure all push you toward more than one line, and each one is a full monthly charge.
- SMS fallback. Sometimes bundled, sometimes a separate per-message charge on top.
- Your engineering time. Genuinely the largest line item for a small team, and the reason a self-serve vendor can be cheaper than a nominally cheaper one with a sales cycle.
What to budget
- Single small business, one line, reminders and review requests. $40–$100/month. Blooio or Photon are the realistic starting points.
- SaaS product adding messaging for its own users. $250–$500/month to start, rising with lines. Weight self-serve and SDK quality heavily — see iMessage API for SaaS.
- Sales team doing outbound at volume. Four figures monthly, plus setup. This is where quote-only vendors live and where the sales cycle is unavoidable.
- Enterprise with a security review. Four figures plus, and SOC 2 narrows your options considerably.
Per-provider breakdowns are on the pricing pages. If none of this fits the budget, the free routes are real, and for low volume they are genuinely sufficient.
Related questions
- How much does an iMessage API cost per month?
- Published plans generally start between $25 and $100 per line per month. Blooio publishes $39 flat for a shared line; Photon has a free tier and a $25 Pro plan; LoopMessage starts near $60 before add-ons. Enterprise and outbound-heavy plans are usually quote-only and considerably higher.
- Do iMessage APIs charge per message?
- Mostly no. The category has converged on per-line monthly pricing with unlimited or high-limit messaging, which is the opposite of the per-segment model used for SMS.
Still deciding?
Compare the services that can actually send this on the providers page, see what each one costs, or read the step-by-step guides.