# Privacy Policy for FormuLab: Advanced Calculator **App Name:** FormuLab: Advanced Calculator **Package Name:** com.devfrankyy.formulab **Developer:** DEV.FRANKYY **Developer Contact:** dev.frankyy@gmail.com **Effective Date:** July 30, 2026 --- # 1. Introduction Thank you for using **FormuLab: Advanced Calculator** ("FormuLab", "the App", "we", "our", or "us"). Your privacy is important to us. This Privacy Policy explains how FormuLab handles information when you download, install, and use the application on Android devices. By using FormuLab, you agree to the practices described in this Privacy Policy. --- # 2. Offline-First Design FormuLab is designed primarily as an **offline calculator, mathematical solver, and formula reference application**. Your calculations, history, saved formulas, favorites, preferences, themes, and settings are stored locally on your device. We do **not** operate servers that store your mathematical calculations or personal data. --- # 3. Information We Collect FormuLab does **not** require users to create an account and does **not** directly collect personally identifiable information (PII), including: - Name - Email address - Phone number - Home or mailing address - Government-issued identification - Payment information - Contacts - Photos or videos for storage - Audio recordings Your data remains on your device unless otherwise described below. --- # 4. Local Device Storage To provide core functionality, FormuLab stores certain information locally on your device using secure local storage technologies (such as Capacitor Preferences or local storage). Locally stored information may include: - Calculation history - Saved formulas - Favorite formulas - Theme preferences - App settings - Premium purchase status This information never leaves your device unless required by a third-party service that you explicitly use. --- # 5. Math Scanner & Image Processing If you choose to use the optional **Math Scanner** or **Image-to-Math** feature, images selected by you are processed only for recognizing mathematical expressions and generating solutions. Images are processed temporarily for the requested operation and are not permanently stored by the developer. Depending on the recognition technology used, images may be securely transmitted to a third-party service solely to perform mathematical recognition and return the recognized equation. --- # 6. Advertising (Google AdMob) The free version of FormuLab displays advertisements using **Google AdMob**. Google AdMob may automatically collect certain information, including: - Device identifiers (Advertising ID) - Device information - IP address - Diagnostic information - Advertising performance data This information is collected and processed by Google to: - Display advertisements - Measure advertising performance - Detect fraud and invalid traffic - Improve advertising services For more information, please review Google's Privacy Policy: https://policies.google.com/privacy --- # 7. In-App Purchases FormuLab offers an optional **one-time lifetime premium upgrade** using **Google Play Billing**. Google Play securely processes all purchases. FormuLab does **not** collect, process, or store: - Credit card numbers - Debit card information - Bank account details - Payment credentials Payment information is handled entirely by Google Play. Learn more: https://payments.google.com --- # 8. Data Security We take reasonable measures to help protect your information. - Local app data remains stored on your device. - Communication with Google services, including Google AdMob and Google Play Billing, is encrypted using industry-standard HTTPS/TLS protocols. - We do not intentionally expose your locally stored information to third parties. --- # 9. Children's Privacy FormuLab is intended for general audiences and educational use. We do not knowingly collect personal information from children under the age of 13. If you believe a child has provided personal information through the application, please contact us so appropriate action can be taken. --- # 10. Third-Party Services FormuLab currently uses the following third-party services: ### Google AdMob Used to display advertisements in the free version of the application. Privacy Policy: https://policies.google.com/privacy --- ### Google Play Billing Used to securely process optional in-app purchases. Privacy Policy: https://payments.google.com --- # 11. Your Choices You may: - Use FormuLab without creating an account. - Purchase **FormuLab Premium** to permanently remove advertisements. - Delete locally stored app data at any time by clearing the application's storage or uninstalling the app from your device. --- # 12. Changes to This Privacy Policy We may update this Privacy Policy periodically to reflect improvements, legal requirements, or changes to the application's features. Any updates will be published on this page with a revised **Effective Date**. We encourage users to review this Privacy Policy periodically. --- # 13. Contact Us If you have any questions, concerns, or suggestions regarding this Privacy Policy, please contact: **Developer:** DEV.FRANKYY **Email:** dev.frankyy@gmail.com --- © 2026 DEV.FRANKYY. All rights reserved.