Privacy

Nudge · Effective Nov 12, 2026

Only what Nudge needs to write your nudgesYou sign in with Apple, Google or an emailed code. Your goal text goes to OpenAI, or Anthropic as a backup, to write your nudges, without your email or account ID. Firebase Analytics counts basic app usage. No ads, no tracking, and you can delete your account in the app.
No adsNo trackingUsage analytics onlyDelete your account in the app
About this policy

Nudge (“the App”) is an iOS application developed and operated by HBKL Labs LLC. This privacy policy explains how the App collects, uses, and protects your information.

The short version

• We collect only what the app needs to deliver your nudges.

• No ads and no tracking across other apps or websites. We use Google's Firebase Analytics to count how the app is used, such as which screens are opened, so we can fix and improve it. It is not used for advertising.

• You can delete your account and all associated data from inside the app at any time.

What we collect

All data we collect is linked to your account and used solely to run the app:

Email addressCollected at sign-in and used as your account identifier. If you choose Apple’s “Hide My Email,” we only ever see the relay address.
NameIf you sign in with Apple or Google, the name that account shares with us (it can be blank or a relay). We use it to greet you and label your account.
Device identifierThe push notification token Apple issues for your device, and a random app-instance ID that Firebase Analytics assigns to this installation. We use the token to deliver your nudges and the instance ID to count usage.
Usage dataWhich screens you open, which onboarding steps you finish, when a subscription screen is shown, and which nudges you favorite or rewrite. It is linked to your account and used to run and improve the app. It never includes the text you write.
User IDA unique identifier from Firebase Authentication that links your goals, schedules, and notification history to your account.
Goals you createTitle, context, motivational tone, and notification schedule.
Notification historyThe messages we’ve sent you, your favorites, and whether they were delivered.
Subscription statusManaged through Apple and RevenueCat so we know which features to unlock.
What we do NOT collect

• Location data

• Contacts

• Photos, microphone, or camera access

• Browsing history outside the app

• Crash reports or advertising identifiers

How we use it

• To create and manage your account.

• To store your goals, schedules, and notification preferences.

• To generate personalized AI-powered motivational messages based on the goals and tone you’ve set.

• To deliver push notifications at the times you’ve picked.

• To manage your subscription entitlements.

• To understand how the app is used and fix problems (Firebase Analytics).

Before any user-supplied content or AI-generated message is stored or delivered, it passes through an automated content moderation check so the notifications you receive stay on-topic and safe.

Free week: if you have no subscription, your 7-day free window is tracked on our servers with your account so it cannot be restarted by deleting and re-adding a nudge. Widgets: the Home Screen and Lock Screen widgets show your latest nudges from a copy stored on your device only. Turn off "Show on Lock Screen" in Settings to hide the text. Signing out clears that copy.

Authentication

Nudge supports three sign-in methods: Sign in with Apple, Google Sign-In, and email magic-code. Authentication is handled by Firebase Authentication. We never see or store your password.

Third-party services

Nudge relies on the following services to operate. Each has its own privacy policy:

We do not share your data with anyone else.

Firebase (Google)Provides authentication, the Firestore database that stores your goals and notification history, Cloud Functions that generate messages, and Firebase Cloud Messaging for notification delivery. Firebase Analytics also receives the usage data described above.
OpenAIWrites your nudges. It receives the goal title, any context you added, the tone you chose, and a few of your recent nudges for that goal so it doesn’t repeat itself. It does not receive your email or account ID.
Anthropic (Claude)Backup writer used only when OpenAI is unavailable. It receives the same information as OpenAI above, never your email or account ID.
RevenueCatManages in-app subscriptions and purchase verification with Apple.
Apple Push Notification serviceDelivers notifications. Apple sees the device token and notification payload.
Your rights
Delete your accountOpen the app, go to Settings, and choose Delete Account. Your account, goals, notification history, and subscription state are removed within 30 days, and any cloud-stored content tied to your user ID is wiped during the same cycle.
Sign outSettings, then Sign Out. Your data stays in your account; sign back in any time to restore it.
Export your dataEmail us and we’ll send you a JSON export within 30 days.
Opt out of notificationsDisable notifications in iOS Settings, or toggle a specific goal off inside Nudge.
Data security

Data is transmitted over encrypted HTTPS connections and stored in Google Cloud infrastructure with row-level access scoped to your user ID. Server-side functions that handle your data require authenticated requests. No method of electronic storage or transmission is 100% secure, and we cannot guarantee absolute security.

Children’s privacy

Nudge is rated 4+ on the App Store. We do not knowingly collect personal information from children under the age of 13. If you believe a child under 13 has provided us with personal information, please contact us so we can take appropriate action.

Changes to this policy

We may update this privacy policy from time to time. Material changes will be noted in the app or by email before they take effect. Minor edits (typos, clarifications) may happen silently.

Contact us

If you have questions or concerns about this privacy policy or your data, please contact us at:

support@hbkllabs.com

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