I recently updated my iPad Collector app to 10.3 and have discovered that the "manage" option now requires me to delete both the map layers and the basemap when I remove a map. Is there any other way to keep the basemap while removing the map layers?
My fieldwork in Alaska covers broad expanses, so I have been using two basemaps for every collection site: one as an overview basemap for all collection sites, and one as a detailed high resolution basemap for individual sites. With 10.3, I now have to keep dozens of maps on my iPad, whereas with 10.2 I used a single map to download basemaps and then kept each basemap while removing the map layers - a cumbersome process in itself, but the only workaround I have found in light of ESRI's basemap size restrictions.
I am working on obtaining a tile package to sideload, but high resolution imagery for my region is not currently readily available to use in a tile package.