JustKcal is a calorie-aware companion. We respect your autonomy, and we treat your data the same way. This page explains what we collect, why, and what we will never do.
What we collect
- Your email, when you sign in with email, Apple, or Google.
- Your scans: the food photo, text, voice transcript, or barcode you submit, plus the nutrition data we return.
- Your weight log entries, when you choose to add them.
- Optional profile fields: name, age, height, weight, activity level — only if you complete the reference setup. You can skip it.
What we do not collect
- We do not use third-party analytics or tracking SDKs.
- We do not collect device contacts, location, or photos library.
- We do not sell your data.
- We do not use your data to train AI models.
How we use your data
Only to make the app work for you: storing your scans so you can see them later, syncing across your devices, and improving accuracy of the results we return to you.
Third-party services
To analyse food, we send your photo or text to AI vendors. We use:
- Anthropic (Claude) for vision and text analysis.
- OpenAI (Whisper) for voice transcription, when you use voice input.
- Open Food Facts for barcode lookups (a public, open-data project).
- Supabase for authentication, database, and storage.
These vendors process the request and return a result. They do not receive your account identifier. We have agreements with these providers that prohibit them from using your data to train their models.
Where your data is stored
Your account, scans, and profile are stored in Supabase Postgres. Photos you submit are stored in Supabase Storage. Data is encrypted in transit and at rest.
How long we keep it
Your data lives in your account until you delete it. You can delete a single scan, your weight log, or your entire account at any time. Once you delete your account, your data is removed within 30 days.
Your rights
You can access, correct, export, or delete your data directly from the app. If you cannot access the app, email us — see Support — and we will help.
Children
JustKcal is not intended for children under 13. We do not knowingly collect data from children under 13.
Changes to this policy
If we change this policy in a way that affects you, we will update the date above and notify you in the app the next time you open it.
Contact
Questions about this policy? Email [email protected].