When you ask a question, Brontwell sends only the profile data relevant to that specific query to OpenAI Ireland Ltd. — your name, email, and device identifiers are never included.
Brontwell uses OpenAI as its AI processing partner (sub-processor). Each time you ask a question — for example, "Is this yoghurt OK for my daughter's reflux?" — we assemble a minimal prompt containing only the data needed to answer accurately: relevant allergens, dietary preferences, and specific lab values if the question relates to them.
We apply GDPR data minimization per query. A question about meal ideas sends your allergen list, not your bloodwork. A question about iron levels sends your ferritin value, not your full dietary history.
Your profile — all your family members' data, lab results, and conversation history — is stored only on your device. It is not on Brontwell's servers. When you delete the app, your data is gone.