What is RCS messaging?
RCS (Rich Communication Services) is the modern successor to SMS — supporting read receipts, typing indicators, high-quality media, and richer interactions over mobile networks.
RCS upgrades traditional texting with features people expect from chat apps: better images and video, group features, read receipts, and interactive elements, all in the default messaging app on supported phones.
For AI assistants, RCS — alongside iMessage, Telegram, and WhatsApp — is one of the channels that lets an assistant live in your texts rather than requiring a separate app.
how this works in folk
Folk meets you in the messaging you already use — iMessage, Telegram, and WhatsApp — so there's no new app to download. Texting an assistant in your default messages is the whole idea.
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Is RCS the same as iMessage?
No. iMessage is Apple's proprietary system; RCS is a cross-platform standard increasingly supported across iOS and Android. Both enable richer texting than plain SMS.
Do I need RCS to use folk?
No. Folk works over iMessage, Telegram, and WhatsApp — you just text it like a friend.