Privacy Policy

1. Overview

notch is developed and published by yaja. We value your privacy and aim to be transparent about how data is handled. This policy explains what is — and isn't — collected when you use the app.

2. Local data storage

Your calorie entries, your daily target, your weight and other profile inputs, and all app settings are stored locally on your device. There are no accounts, because we don't run any servers. This data never leaves your device, and it is deleted when you uninstall the app.

3. Advertising (Google AdMob)

If you use the free version of notch, Google AdMob serves a small banner advertisement at the bottom of the screen. To deliver these ads, AdMob may collect and use data such as your device's Advertising ID and IP address. AdMob also uses Meta Audience Network as a mediation partner, which may receive similar identifiers when it serves an ad. That data is handled under Google's Privacy Policy and Meta's privacy policy respectively, not ours.

You can opt out of personalised ads in your Android device settings, or remove ads entirely with a notch subscription.

Users in the UK, EEA, and Switzerland are shown a Google consent message before personalised ads are served. You can revoke or change that consent at any time via Settings → Privacy → Manage privacy choices inside the app.

4. Subscriptions (RevenueCat)

If you subscribe to notch, the purchase is processed through Google Play Billing. We use RevenueCat to manage subscription entitlements — RevenueCat receives the purchase receipt from Google Play and tells the app whether your subscription is active. RevenueCat's SDK also uses an anonymous installation identifier to track entitlement across launches. Data handled by RevenueCat is covered by RevenueCat's Privacy Policy.

5. Anonymous usage data (Firebase Analytics & Crashlytics)

We use Firebase Analytics and Firebase Crashlytics (both Google services) to understand how the app is used in aggregate and to surface crashes for fixing. This includes event-level data about screens viewed, settings changed, subscription funnel steps, and uncaught errors. It uses a per-install pseudonymous identifier — we explicitly disable collection of your Advertising ID and your Android ID. We never send the contents of your calorie entries, your weight, your age, or any other personal profile data.

This is governed by a regional default and your own choice:

• UK, EEA, and Switzerland: off by default. You can turn it on if you want to help improve the app.
• Everywhere else: on by default. You can turn it off at any time.

The toggle lives at Settings → Privacy → Send anonymous usage data. Flipping it off stops both analytics and crash reporting at the SDK level on your device.

Data handled by Firebase is covered by Firebase's Privacy and Security information and Google's Privacy Policy.

6. Data deletion

Because none of your calorie or profile data is stored on our servers, we cannot delete it for you. You have full control: clear entries inside the app, or uninstall notch to remove everything. For subscription records held by RevenueCat or Google Play, deletion is handled by those providers under their own policies.

7. Contact

If you have any questions about this policy, contact us at info@yaja.app.