ModFx Labs is a company that specializes in extracting business-wise targetable intelligence from location signals. With a young team of mathematics, statistics, and data science specialists, we are dedicated to finding new ways to provide advertising ... Find your mobile Advertising ID (iOS: Settings > General > About; Android: Settings > Ads), then either submit the opt-out form on the privacy page or email mandeep[at]modfxlabs.com with the subject 'ModFx Labs - Opt-Out Request {your Advertising ID}'. They say a matching Advertising ID will be blocked within 10 working days. Because ModFx keeps partner data for 6 months and only blocks the specific ad ID you supply, resetting your ad ID or using a new device may create new records, so also enable 'Limit Ad Tracking' / 'Opt out of Ads Personalization' on each device.