Account & Privacy

Your KidneyPal account keeps your diary, meals, and recipes safe and synced. This page explains how sign-in works, what we store, and how to delete everything if you ever want to.

Signing In

KidneyPal supports three ways to sign in:

Email & password — create an account with your email and a password (at least 6 characters). There’s a Forgot your password? link on the sign-in screen if you ever need a reset email.

For your privacy, the reset screen never reveals whether an address is registered — it shows the same message either way: If this email is eligible for a password reset, we’ll send a link. Check your spam folder too. If the email still doesn’t arrive, that address may not have a KidneyPal password (a deleted account, a different email, or an account that uses another sign-in method).

If you usually sign in with Apple or Google, you may not have a KidneyPal password — use that button instead. On Android, Apple sign-in is at web.kidneypal.app.
Continue with Google — sign in with your Google account
Continue with Apple — sign in with your Apple Account (in the app on iPhone and iPad, and on the web app)

Tip: Stick with the same sign-in method each time so you always land in the same account. And if you bought Pro on our website, sign in with the same email you used at purchase — see Subscription & Billing.

Signed Into the Wrong Account?

Each sign-in method is its own account. If you sign in with a different Google, Apple, or email account than the one you used before, KidneyPal opens a new, empty account and starts the setup questions again. Your meals, labs, and settings are still safe in your original account.

On a phone where you’ve used KidneyPal before, the app notices this and asks Is this the right account? — for example: This account has no KidneyPal data yet. On this phone you used Google (j•••@gmail.com) before.

Tap Sign out and use my other account, then sign in again with the method you used before. Your diary will be there.
If the new account is the one you want, tap Continue with this account. The message won’t appear again for that account.

Nothing is deleted either way — the message only offers to sign you out.

When the message doesn’t appear

The check only works on a phone that has been signed in to your other account with KidneyPal 4.36 or later and hasn’t been reinstalled since. It doesn’t appear:

on a new phone;
after you delete and reinstall the app;
on the web app (web.kidneypal.app).

In those cases, if you see the setup questions when you expected your diary, sign out and sign in with the method you used before. On the web app, the “Create your account in the mobile app” screen shows the same hint. Not sure which method you used? The email address on your subscription receipt (from Apple, Google Play, or Paddle) is usually the one to try first. Apple’s “Hide My Email” addresses end in privaterelay.appleid.com.

Pro missing after you sign back in?

If you’re back in your original account and Pro isn’t showing, go to Settings → Restore Purchases. It uses the App Store or Google Play account on this phone to find your subscription — see Restore Purchases. If that doesn’t bring Pro back, email support@kidneypal.app and we’ll sort it out.

Subscriptions bought on our website are linked to your email address, not your phone’s store account, so Restore Purchases doesn’t apply to them — sign in with the email you used at purchase, or contact support.

What KidneyPal Stores

To make the app work, KidneyPal stores the data you create:

Your profile — your kidney condition, weight, other health conditions, diet preferences, and the nutrient limits calculated from them
Meals and photos — your scanned meals, their photos, and the AI analysis
Diary entries — meals, fluids, and daily notes
Recipes — recipes you import, create, or save, plus your favorites
Weight history — your logged weights

Where Your Data Lives

Your data is stored securely in the cloud on Google Firebase, the same infrastructure used by many major apps. Meal photos are private to your account — they’re not shared or visible to other users. Because your data lives in your account, you can sign in on a new phone and everything comes with you.

For the full details, read our Privacy Policy.

Language, Units, and Preferences

Language, theme, and weight/volume units are all changed in the app’s settings — see the Settings guide.

Signing Out

Go to Settings → Sign Out and confirm. Signing out doesn’t delete anything — your data is waiting when you sign back in.

Deleting Your Account

If you want to leave KidneyPal entirely, you can delete your account and all of your data from inside the app:

Go to Settings → Delete Account
Confirm when asked: “Are you sure you want to delete your account? This action cannot be undone.”

Deletion removes everything tied to your account:

Your login and profile
All meals and their photos
All diary entries and daily notes
Your recipes, recipe conversations, and favorites
Weight history, saved foods, binder logs, and insights

This is permanent and cannot be undone. There’s no recovery window — once deleted, your data is gone.

Tip: Deleting your account does not cancel an active subscription. App Store, Google Play, and web subscriptions are billed by the store, not by your KidneyPal account — cancel there first. See Subscription & Billing for the steps.

Privacy Policy & Terms

Both are also linked inside the app under Settings → Legal.

A Note on Medical Use

KidneyPal is an educational tracking tool, not a medical device. It doesn’t diagnose, treat, or replace advice from your nephrologist or dietitian. Always follow your healthcare team’s guidance.

Need Help?

Email support@kidneypal.app, or use Settings → Feedback / Support in the app — it opens an email with your app version pre-filled so we can help faster.