“To make the ads you notice relevant and useful, we use guidance about your activity on sites and apps that are not Facebook Company Products to find out about your interest. You can opt out of seeing ads in line with this guidance on your device settings. This surroundings controls the Instagram ad you’ll see on the device you’re using. Turning off this environment doesn’t delete any data.
You’ll still see an analogous variety of ads, but they’ll be in accordance with things you do on Facebook Company Products, or they’re from a particular business that you just’ve shared your touch assistance with, if we’ve matched our profile to their buyer list or if you’ve shared data with them offline.