The GDPR applies to businesses:
established in the EU, regardless of whether personal data is processed in the EU;
not established in the EU but that offers goods or services to EU-based individuals (free or paid); or
not established in the EU that monitor EU residents’ behaviour.
The GDPR most likely affects you in some way if you:
you get data processed in the EU or EEA;
you take data processing directions from someone in the EU or EEA;
you export data out of the EU or EEA;
you import data into the EU or EEA; or
you collect information from someone in the EU or EEA.