Getting an RCS agent approved to send has less to do with the API and more to do with configuration choices made before the first launch request — agent types, brand verification, and Google-managed vs carrier-managed tiers.
Sending a single message is straightforward. Ensuring reliable delivery of millions of messages presents a significant engineering challenge.
There's no official Apple iMessage API — so which provider should you actually build on in 2026? We compared Blooio, Sendblue, LoopMessage, and Linq on pricing, features, onboarding, and reliability. Here's the honest breakdown.
iMessage vs RCS in 2026: open rates, deliverability, cost, and reach compared. See which channel actually wins for business messaging — and how to use both with automatic fallback.