I love the Easy Logger app. It helps me keep track of my mother who has just been diagnosed with Parkinson's disease. Even though she stays in a long-term care home, she insists on walking around without her rolling walker. She is prone to falling. Fortunately, she's pedantic about keeping her phone with her, so I installed the app on her phone. I now receive an alert when she has fallen. The geolocation function allows me to find her remotely to alert someone to find and help her.