It appears we only have co-ordinates as an option to use mapping?
From the user Guide at Location Questions - Epicollect5 Data Collection User Guide
Epicollect5 does not feature any way to automatically pick up an address based on latitude and longitude. Such a feature would require a reverse geocoding service (usually not free) and an internet connection thus it would not work offline.
However, when using the web application, Epicollect5 provides address lookups, see →