Clickatell is a chat commerce and messaging company that says it created the first SMS API 20 years ago. Its platform comes in three packages: Connect (outbound messaging at scale), Interact (two-way conversations) and Transact (payments in chat), across SMS, WhatsApp, USSD in some regions and Apple Messages for Business.
SMS is priced per country, with an online calculator. Packages are sold through sales, and Connect offers a free trial.
Clickatell offers Apple Messages for Business, not iMessage from a phone number: customers message a verified brand in Apple's Messages app, and SMS or WhatsApp covers other phones. Linq sends iMessage, RCS and SMS from real phone numbers through one API for a flat fee from $260 a month with no per-message fees; Clickatell bills SMS per message. Both take payments in chat: Clickatell through Chat 2 Pay, Linq through Apple Pay requests on its Pro plan.
Enterprises that want SMS, WhatsApp and Apple Messages journeys with live agents, bots and payments.