i had to test the app i was developing for a customer on an iOS 13 device for some technical reasons (i used to not care for my previous apps). And my iphone 6

i had to test the app i was developing for a customer on an iOS 13 device for some technical reasons (i used to not care for my previous apps). And my iphone 6 wouldn't install that version (which is another topic). As i said, i'm both an iphone user AND mobile professional developer. The first is quite easy to change, but the second will take a bit more time for me to get rid of Apple (or google).