Could you please help to promote this cool functionality
Check out Enable feature snapping in Collector App
Currently in Colombia, We have many kind of clients that need advanced editing tools when they are collecting data in field. I think that Esri should develop this function soon... other companies, as Trimble, have advanced editing tools.
Please take a look at this blog for a status update,
Collector for ArcGIS (iOS) Updated
Hope this helps,
Retrieving data ...