A method for monitoring use of an absorbent product, such as an incontinence pad or a diaper, worn by a wearer, includes registering a movement of the wearer by way of a mobile device having a movement sensing device, evaluating whether the registered movement is indicative of urinary and/or faecal voiding by the wearer, and providing product-related information to the wearer or a caregiver of the wearer based on said evaluation. In this way, the product-wearer or the caregiver can be provided with valuable information related to the use of the product, such as recommendations on when to change the product, displayed on the mobile device or a mobile device of the caregiver.