I have intalled the app on my android phone and iPad, on android everything works great, on iPad there is only white screen after splash screen, how can I see what is causing this?
Did you remote debug the problem on the device already? Follow these instructions here to debug the problem in Safari dev tools: https://ionic.zone/debug/remote-debug-your-app#ios Look at the console and network tabs for errors.
if I understand this correctly Safari inspector requires me to have a Mac PC? if so, I don’t have one, I only have an iPad
weird is that my app works everywhere, just not on this iPad, it works on iPhone, Android, browser, etc.
What iOS are you using on the iPad and what iOS on the iPhone ? I found out the white screen appears if you use certain angular functions wich aren’t supported with lower iOS versions.
Also how are you putting the application on your device if you have no MAC ? 
iPhone has 10.3.2 and iPad 9.3.5
using HockeyApp
Not sure if it’s relevant to your situation, but I have found the wkwebview-engne cordova plugin extremely helpful, especially when dealing with older iOS versions.
is 9.3.5 considered old?
Sorry, but I can’t say anything definitive on that. My particular situation involved WebCrypto, and using that plugin helped my greatly.
I have exp. also problems with iOS9 check for the Angular functions.
Mine had problems with this function: ngAfterViewInit()
I am not using any particular function like this one, is there any way to track errors without MAC?