it works fine on my Nexus 5
it works online on iphone 6 and iPad air 2
but when you download the map, the titles of the relate tables look different from when they were online. can't view the content of the tables. will see "no valid location" when trying to collect data in the relate tables by selecting the related feature .
really strange behavour ! looks like it using some cached tables, where are the tables cached if there are caching mechanism on iOS.
I really don't like using iOS as an working tool, but my clients love it!!