The short version. Compare the leased iMessage configuration, then add the operational requirements of your business.
Read the two price lines together
Contiguity separates number leasing from messaging capabilities. Its iMessage capability is $69.99 monthly, alongside a $9.99 base lease. That makes $79.98 before any applicable setup or use-case charges. The $19.99 Unlimited subscription covers SMS, MMS and email; it is not the listed iMessage package.
One API does not settle the workflow
A multichannel service can simplify procurement, but your buyer still needs a channel-by-channel answer. Establish which sender the recipient sees, how incoming replies are routed and whether a fallback changes the identity of the conversation. Request an example invoice for the leased configuration rather than a general account estimate.
Put administration on the demo agenda as well. Someone needs to see unresolved replies, hand a conversation to a colleague and retrieve its history. Confirm which parts the service provides and which your application must implement.
When it belongs on the shortlist
Contiguity is worth examining when the team wants several communication capabilities behind one integration and is prepared to inspect the lease terms. The price structure is less useful to a buyer who compares only the lowest subscription banner.
Ask about the eligibility of the exact number you intend to use, porting or release procedures and the treatment of prepaid balances when leaving. Those answers determine the cost of changing direction if the pilot exposes a workflow mismatch.
Sources & further reading
These provider pages were checked for this edition. Provider statements are not independent verification of performance.