Cell phones make it possible to offer coaching services through text/video messages, to support users trying to break addictions. Given that use of such services is still low in France, it is important to have greater understanding of what leads users to adopt them. Therefore, the authors propose and validate an explanatory model for the intention to adopt a mobile coaching service to help people to stop smoking. This article uses the concepts of vicarious innovativeness, social influence, perceived monetary value, perceived enjoyment, and perceived irritation.