Cannot install iOS update and cannot use/re-download apps
Hi, recently I have been trouble using certain apps like shazam and fitbit, it doesn't say that anything is wrong but it keeps on offloading itself and when I tried to use them again it never did fully download.
When I search these apps up on app store it doesn't show up, and when i google it, the download button is not available for me. These apps said they needed e.g. iOS 12. something minimum to operato, and my phone is already on iOS 13 something. So I tried to download to iOS 13.6, but the updates won't install as well and I'm still stuck :( please help!
iPhone 6s Plus, iOS 11