# Privacy Policy (Physics AI)

**Last updated: April 10, 2026**

Physics AI ("we", "us", "our") is an educational mobile application that helps users learn physics using AI explanations and learning tools.

If you have questions about this Privacy Policy, contact us at **`[email protected]`**.

## 1. What data we collect

### 1.1 Data you provide

- **Text you enter** in the app (e.g., physics problems, questions, messages).
- **Photos you upload or capture** (e.g., photos of problems, formulas, diagrams).
- **Learning data stored locally** (e.g., flashcards/quizzes usage, progress, settings).

### 1.2 Data collected for subscriptions

If you purchase a subscription, our subscription provider (RevenueCat) and the platform (Apple/Google) process subscription-related data such as:

- **Purchase history / subscription status**
- **Device/app identifiers** used to restore purchases and manage entitlements

We do **not** collect your full payment card details. Payments are handled by Apple App Store / Google Play.

## 2. How we use your data

We use the collected data for:

- **App functionality** (answering your questions, processing photos you submit, showing results).
- **Providing learning features** (flashcards, quizzes, cheat sheets, statistics).
- **Subscription management** (verifying access to Pro features, restoring purchases).
- **Security and reliability** (preventing abuse, improving stability).

We do **not** use your data for third‑party advertising or selling personal data.

## 3. Where your data is processed (third parties)

To provide the core features of the app, we may share limited data with:

- **OpenAI** — to generate AI responses and/or process content you submit for help.
  - OpenAI Privacy Policy: `https://openai.com/privacy/`
- **RevenueCat** — to manage subscriptions and entitlement status.
  - RevenueCat Privacy Policy: `https://www.revenuecat.com/privacy`

We share only what is needed to provide the functionality you request.

## 4. Data storage and retention

- Most app data is stored **locally on your device**.
- Content you submit for AI processing is sent over **encrypted HTTPS** connections.
- Retention depends on the external providers’ policies and your device storage. You can remove local data by uninstalling the app.

## 5. Your choices and rights

Depending on your location, you may have rights to access, delete, or restrict processing of personal data.

Practical controls:

- You can **stop using the app** at any time.
- You can **delete local data** by uninstalling the app.
- You can **cancel subscriptions** in Apple/Google subscription settings.

To request help with privacy questions, email **`[email protected]`**.

## 6. Children

The app is intended for users **13+**. If you believe a child under 13 has provided personal data, contact us and we will help address it.

## 7. Changes to this policy

We may update this Privacy Policy from time to time. We will update the “Last updated” date above.