A method for monitoring use of an absorbent product, such as an incontinence pad or a diaper, worn by a wearer is provided. The method includes obtaining, by way of a mobile device, intake information indicative of intake of fluid and/or solid material by the wearer, obtaining, by way of the mobile device, voiding information indicative of urinary and/or faecal voiding by the wearer, predicting, based on the intake and voiding information, future voiding by the wearer, and providing, by way of the mobile device, product-related information based on the prediction. In this way, the product-wearer or his caregiver can be provided with valuable information related to the use of the product, for example recommendations on when to change the product.