These are test instances of an app in development (rosta1, lucy1, mj1), not a product.
Your name, email address, phone number, scans with their time, the GPS position of a scan, and photos.
To run the test: who did what, where and when. Nothing is sold or used for advertising.
The app receives only your email address and basic profile (name). It gets no other Google data and no access to your Google account.
Photos are kept 90 days, visits and scans 24 months, then deleted. Backup copies live up to 35 days longer.
Hosted in the EU, in a Linode data centre in Amsterdam (Netherlands). Nothing is stored outside the EU.
Write to privacy@mj41.cz and say which test app and which email you used. Your data is deleted on request.