Deutschlands Radio German FM and Radios Deutschland Live FM appear to be the SAME APP, except the latter has a couple features that the former does not have.
Those features are Favorites and a Timer. There are two more features in Live FM, but they have to do with rating RadiosDeutschlandLiveFM and looking for other apps by the same developer.
Developer names for the two apps are Xingping Ding and Yiping Ding - another hint that these may be the same apps.
Content of both apps is identical. Neither has a search function but, as mentioned, Live FM has a Favorites option that would cut down on search time.
Content: Not nearly the number of stations from Germany as other apps have. In fact, while RadiosDeutschlandLiveFM suggests two pages of stations available, only one page is populated. That saves time in searching since there aren’t that many stations to search through.
The Good: Both apps have all the SWR stations that I listen to. This is good because SWR does not have an app to stream all of their stations; instead, SWR has one app per station.
The Bad: Does not have any of the SR (Saarland) stations that I listen to. But SR has an app that covers all their stations.
So, my primary use of RadiosDeutschlandLiveFM, which works on both iOS 9 and iOS 13, is for an all-in-one source for SWR stations.