Privacy policy
Last updated July 2026
What we collect
The information you enter into Leeno: your medication and dose schedule, doses you mark as taken, weight entries, symptom check-ins, meals and their nutrition, your goals, and optional profile details (name, country, age, height, sex). To create your account we also store your email address. If you log a meal by photo or by voice, we also handle that photo or recording. See “Photos and voice notes” below.
How we use it
We use your information only to run Leeno for you: to show your progress, back your data up, sync it across your devices, and power features like your protein and calorie tracking and journey-phase insights. We do not sell your data or use it for advertising.
Photos and voice notes
To turn a meal photo or a voice note into protein and calorie numbers, Leeno sends it to OpenAI, an artificial-intelligence company, which processes it on servers in the United States. Leeno never stores the photo or the recording: once the estimate comes back, only the meal name and the numbers you confirm are saved to your account. If you would rather nothing left your phone this way, you can always log a meal by typing it in, or by scanning a barcode.
Barcode scans
When you scan a barcode, Leeno looks it up in Open Food Facts, a free public food database, and in Leeno’s own shared product catalogue. If the product is in neither, the label details you type in are added to that shared catalogue, so the next person to scan it gets an instant match. The catalogue holds product information only. It never holds your meals, your health data, your name, or anything that identifies you as the person who added it.
Where it is stored
Your data is stored in a secure cloud database (Supabase) hosted in the European Union, encrypted in transit and at rest. Access is restricted so that only you, signed in to your account, can read or change your data. The one exception is meal photos and voice notes, which are processed in the United States as described above.
Crash reports
If Leeno crashes, the app sends us a short technical report so we can fix it: what went wrong, the part of the code that failed, which screen you were on, your app version, and your account identifier if you are signed in. Before it leaves your phone the report is scrubbed to remove things like email addresses and access tokens. It never contains your meals, your weight, your symptoms, or anything else you have logged. If you delete your account, any crash reports you sent stop being linked to you.
Your choices and rights
You can view and edit your data in the app any time. You can delete your whole account, your login, your email, and all of your stored data, from Settings, “Delete all my data”. Depending on where you live, you may also have rights to access, correct, or export your data; contact us to make a request.
Data retention
We keep your data for as long as you have an account. When you delete your account, your login, your email, and all of your data are removed from our database.
Not medical advice
Leeno helps you track your own information. It is not a medical device and does not provide medical advice. Always follow the guidance of your own clinician for anything related to your medication or health.
Contact
Questions about your privacy? Contact the Leeno team at hello@leeno.app and we’ll help.