OTT Messaging Apps
Conversational messaging channels delivered via over-the-top (OTT) mobile applications and rich carrier protocols — including WhatsApp, LINE (Japan/Southeast Asia), KakaoTalk (South Korea), WeChat (China), and RCS (Rich Communication Services, a carrier-level SMS successor available via Google Messages and Samsung Messages). Distinct from modality.sms (carrier-based text; international, no-app-required) and modality.push (device OS-level notifications; app install required but not app-specific messaging platform). OTT messaging channels require platform-specific API credentials and template approvals (WhatsApp Business API requires Meta approval; LINE and KakaoTalk require regional business account registration). CDP activation to messaging-app channels typically routes through a customer engagement platform (Braze, Salesforce Marketing Cloud, Vonage, Infobip) that holds platform API credentials and handles session threading, message template compliance, and opt-in verification. High opt-in friction and geography-specific market penetration make this modality most relevant for D2C, retail, and financial services organizations operating in EMEA, Japan, Southeast Asia, or South Korea.
Your feedback
Sign-in-gated. Tomorrow morning's reviewer routines consume your signal and re-weight their scoring. "Incorrect" signals queue this node for re-review.