1) Mobile apps are facing challenges as many users delete apps after one use and see most apps as just marketing tools rather than engaging experiences. 2) Both baby boomers and millennials have attitudes that can inform better mobile app design, such as baby boomers valuing simplicity and millennials prioritizing immediacy. 3) New interactions like brain control, as well as addressing user needs for assurance, stress reduction, and respect for their data privacy and context will be important to engage users.