Apps can’t access photos or contacts
I just got a new iPhone 7 and from 3rd party apps like WhatsApp of Instagram I can’t access my contacts or photos. I tried going through privacy settings for WhatsApp, Instagram, contacts, photos etc. But haven’t found anything. I think in the setup I must have said “skip” at a step where I allowed apps to do that. What do I do from here to fix it?
Thank you