Control how ads are chosen for you. This never affects Health, Money, or Legal — those modules are permanently ad-free.
When on, sponsored cards are matched to the module you snapped in (e.g. an Auto ad on a car problem). When off, you'll see the same number of ads, chosen generically instead of by module.
Sponsored cards are matched to the DIYLens module your snap was in — never to the photo itself, your location, or any personal data. Every campaign is manually reviewed before it goes live.