I have an app that I want to download but it requires iOS 11.3 or higher. That app has been available since iOS 9 and older versions are compatible with 9 and 10.
Some apps which similarly require iOS 11+ that are in my purchased apps list enable me to download an older version of that app but the ones which i have not purchased don't. They just say that i require iOS 11.3 or higher.
Is it possible to sign into my apple ID on a different iPhone running iOS 11.3 or higher, download the app so that it appears in my purchased list and then sign out, go back to my iPhone and download the app in it's older version like the rest of the apps?