 The study aimed to translate, adapt and validate the equivalent French version of the mobile application rating scale, Mars, tool for evaluating and comparing mHealth app functionalities. The final Mars F version was created after blind-back translation and comprehensibility evaluation by six individuals. The results showed that Mars F had a good alignment with the original Mars, with acceptable to good internal consistencies and strong scalability for both scales. This article was authored by Ina Saliasi, Priscilla Mardanon, Emily Darlington and others.