We usually reply within 1–2 business days.
Email n3at18@gmail.com. You do not need to tell us which app — this address is reached from BMI Tracker, and the subject line already says so. Including your iOS version and what you were doing when it went wrong helps us answer in one reply.
BMI Tracker keeps your data on your device. If you are moving to a new iPhone, restore from an encrypted backup, or use the app's own export if it has one — we cannot recover data from our side, because we never have it.
Purchases are handled by Apple, so refunds go through Apple rather than through us: reportaproblem.apple.com. Tell us too if something did not work — we would rather fix it.
See the BMI Tracker privacy policy.