Using Repeatable Fields to create Child Records on Android
Adding child records to a parent record on a mobile device is as easy as creating any other record. The repeatable field will be shown in the parent record as if it were a normal drill down section field.
Once in the repeatable section of a record, you can add child records by clicking the add child record icon in the lower right corner (Green circle with + in the middle). There is also list view and map view options and a child record search box. When you are finished adding child records to the parent record tap the Android back arrow and then tap the save button to save the child records added.
Android repeatable section views (list and Map)