Like old Messenger available for 10 AU thanks to developers, someone could make it on other old vrsn apps.
Like Accuweather, the latest is far worse than previous
problem is:
1: your phone would have to be in developer mode (ok, not that big of a problem if on Windows 10)
2: the app would have to be changed so that it would not get auto updated from the store
3: do you really trust people on the internet enough to give you an older version on an app that's been modified so it won't get updated WITHOUT adding in something??
4: all of the above is moot if APIs have been changed, rendering the app useless....