I can't download apps in my iPhone due to old version

Pssagar ~ iPhone 6 cannot be updated beyond iOS 12:

iOS 13 and iPadOS are compatible with these devices

iOS 14 and iPadOS are compatible with these devices

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You can get older version of apps by downloading them on a device that has an ios that can run the latest version of that app and then on your iphone 6 press the apple id profile icon (top right) in the app store and press purchased and then search the app, once the app you want is found press the download from cloud symbol (just the cloud icon) and it should have a pop up saying download latest compatible version

I've asked the question of where could i download an older version of iHeartradio app (the one used when iOS 12.*)

there was a lot of data telling me the app requires iOS 13 or above. I think an answer is still required

If I had a device that could run the latest version of the iHeartradio app, why would i be using a device that wasn't capable of running that app?

And showing me lists of devices that are compatible with iOS 13 and 14 is really off base when I've already stated I'm running 12.5.* (it's an iPhone 6).

[Edited by Moderator] 

Unfortunately, that model can not be updated further.

I followed the above directions to update some apps on my phone, but the cloud icon did not appear next to their name. Is there anything else I can do to update these apps on my old phone?