body: This is a really basic question about GDPR.
  
  
  If I have products that are intended only for US customers, but can be accessed by European Union residents, does GDPR apply?
  
  
  More specific example:
  
  
  A customer downloads my app through the iOS US App Store, but the customer is a resident of France. Does GDPR apply?
  
  
  Am I obliged to inspect the iOS locale or geo-locate or ask the customer?
  
  
  
title: As a web and mobile (iOS and Android) developer, how do I discover if GDPR applies to a user?