I have a created an interactive trail map (ArcGIS Web Application) using ArcGIS Online's Web AppBuilder . The Forest Preserve District that I work for has over 200 miles of trails and connect to countless more trails. Many of our users have asked for a tool to help them track their hikes and rides on our trails, similar to apps like map my run/ride, which give their distance, duration, average speed etc. It would great if ESRI or a developer would create a widget or custom widget that would allows user using a smart phone to track their distance, etc.
Lake County Forest Preserve District