DietAlert (IMAGE) Drexel University Caption DietAlert is a mobile app, used in conjunction with the Weight Watchers app, which alerts users when they are likely to lapse from their diet plans. Credit Drexel's Laboratory for Innovations in Health-Related Behavior Change Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.