Similar to this three year old idea, it would be incredibly useful if our users were able to freehand sketch lines and polygons on Collector for ArcGIS. Our previous workflow utilized OruxMaps. Particularly for sketching avian flights paths, they would press their finger on the map and trace the flight path as the bird was in flight. As we move forward to an Esri focused solution, we have found this difficult to achieve.
This workflow is nearly impossible with Collector. They have to either a) Start streaming and run around in a circle (not going to happen) or b) Try and tap a ton of vertices to create the continuous line (inaccurate and time consuming). Oftentimes our field techs won't draw the circles and the data is no longer representative of the true flight path.
Thanks for reading!