I simply assume they are going to upload my contact data whenever they prompt me for the permission. Not sure how iOS does permissions these days - do they also

I simply assume they are going to upload my contact data whenever they prompt me for the permission. Not sure how iOS does permissions these days - do they also have runtime permissions like Android? I know that a lot of companies here in India skip the runtime permissions system entirely and ask for them all at install time to handle fewer edge cases in the code, and make the user less likely to be suspicious.