Contiguity iMessage API pricing
$69.99/mo for the iMessage capability on a leased number — the cheap headline rates are SMS.
The tiers
Free
$0no card required
- 500 SMS per month
- Access to the API and docs
Catch **iMessage is not included.** The free tier is an SMS tier.
SMS usage
$0.005per SMS
- Pay-as-you-go SMS
- No minimums
- No hidden carrier or international fees
Catch This is the number that gets quoted in cheapest-iMessage-API roundups. It is not an iMessage price.
SMS unlimited
$19.99per month
- Unlimited SMS on a leased number
iMessage capability
$69.99per month, as an add-on
- Blue-bubble sending
- Added to a leased number
- Alongside SMS, email, WhatsApp, voice and OTP on the same API
Catch It is an extra capability on top of a number you are already leasing, not a standalone plan.
Costs that are not on the pricing page
- The leased number the iMessage capability attaches to is its own line item.
- SMS is billed separately from iMessage — a fallback strategy costs on both meters.
Contiguity turns up in cheapest-iMessage-API searches because of a $0.005 per-message figure. That figure is real, and it is the SMS rate. iMessage is a separate $69.99/month capability added to a leased number.
This is the most commonly misquoted price in the category
If you have seen Contiguity described as costing half a cent per iMessage, that was a misreading of the SMS line on the pricing page. Budget $69.99/month plus the number lease, which places it in the middle of the field rather than at the bottom.
Read correctly, it is still a reasonable buy — just for a different reason than the one it gets recommended for. The value is channel breadth: one API and one bill covering iMessage, SMS, email, WhatsApp, voice and OTP verification, with no A2P 10DLC registration to sit through.
If iMessage is the whole point of your project rather than one channel among several, the specialist vendors give you more iMessage for the money — the full comparison is here.
Where these numbers come from
Taken from Contiguity's published pricing page in August 2026. The distinction between the SMS rates and the iMessage capability fee is the vendor's own structure, but it is easy to misread — several third-party roundups quote the SMS figure as though it were the iMessage price.
Best value for
Developers who need one cheap API across SMS, email, WhatsApp and voice, with iMessage available when a particular thread warrants it.
