Privacy policy
Last updated: 30 September 2026
What stays on your device
Everything you enter: foods, fluids, recipes, targets, notes, lab values, blood pressure, weight, dialysis days and profiles. Renalday has no server and no account. We cannot see, read or recover your data.
What Renalday does not do
- No analytics, no advertising, no tracking, no third-party SDKs that collect data.
- Renalday does not store your health information in iCloud.
- Renalday does not read from or write to Apple Health.
Camera and microphone
The camera is used only on your phone to read barcodes and nutrition labels. Dictation is processed on your phone. Images and audio are not saved or sent anywhere: the label photo is deleted as soon as you finish reviewing it.
Importing a recipe from the web
This is the only time Renalday connects to the internet by itself: when you import a recipe from a web address you type, the app downloads that page (over HTTPS) and reads it on your phone. Nothing about you is sent with it.
Face ID or passcode
If you turn on the lock, iOS checks your face, fingerprint or passcode and only tells Renalday whether it matched. Renalday never receives your face or fingerprint data.
Backups and exports
You can create a backup file protected by a password you choose, or export a PDF or CSV. These files are created only when you ask, and you decide where to save or send them. If you forget the backup password, it cannot be recovered.
Purchases
Subscriptions and the lifetime purchase are handled by Apple. We receive no payment details.
Your device's own backup
Like other apps, Renalday's data can be included in your device backup if you have turned that on in iOS settings. That backup is managed by Apple under your settings.