Privacy Policy

AppCrunchStudio ("we," "our," or "us") operates the BookLibrary mobile application for Android (with future planned support for iOS). We are deeply committed to protecting your privacy. This Privacy Policy explains our practices regarding the collection, use, and disclosure of information when you use our application.

Core Privacy Principles

Our philosophy is simple: Your data belongs to you.

• Privacy First — We build with your privacy as our top priority.
• No Ads — The app is entirely ad-free.
• No Sale of Data — We never sell, rent, or monetize your personal information.
• Local Storage — Your library data remains stored locally on your device unless you choose to use our optional cloud backup feature.

Information Collection and Use

No Account Required

You do not need to create an account or log in to use BookLibrary.

Local Library Data

Any personal library data you create or input into the app is stored directly on your device's local storage. This includes:

• Book details (titles, authors, publishers, descriptions)
• Reading progress, notes, status, and custom bookshelves
• Lending history (including names and contact numbers of borrowers you manually input)
• Custom book cover images

Analytics Data

BookLibrary uses Firebase Analytics to collect basic information about app usage to help us understand how the app is used and improve the app over time.

This includes:

• App interactions and usage patterns
• Approximate location derived from IP address
• Device or other identifiers used by Analytics (such as app-instance identifiers)

Optional Google Drive Backup

BookLibrary provides an optional backup and restore feature using your personal Google Drive account. If you choose to enable this feature, the following privacy rules apply:

• Authentication Only — We do not collect, store, or sell personal information on our own servers. If you choose to use the optional Google Drive Backup feature, your Google account's basic profile information (such as your email address) is accessed solely to authenticate your account and enable backup and restore functionality.
• Scoped Access — BookLibrary requests limited access to your Google Drive. The app cannot browse, view, or modify any other files in your personal storage. It is only permitted to access, read, and write the specific backup files it creates.
• Data Storage — Your library backups are compressed into ZIP files and stored inside a visible folder named BookLibraryBackups within your own Google Drive. AppCrunchStudio has no server infrastructure to host these files; they remain entirely under your control within your personal Google cloud environment.
• Control — You can disconnect your Google Drive account from the app and delete your backup files at any time directly through Google Drive or your Google account security settings.

Device Permissions & Actions

To provide specific features, BookLibrary requests access to certain device capabilities or utilizes system actions. These are used strictly for the following purposes:

• Camera — Used solely to scan ISBN barcodes to look up book information. Camera images are processed in real-time on your device and are never uploaded or stored.
• Photos & Custom Covers — If you choose to select a custom cover image for a book, BookLibrary utilizes system photo pickers or native media features. Images selected remain strictly on your device.
• Phone & Third-Party App Communication (WhatsApp / Phone App) — When recording lending history, you may manually type in a contact number. BookLibrary provides buttons to open standard system links (tel: or WhatsApp protocol) to pass the number directly to your native phone application or WhatsApp. We do not request permission to read your device's contact book, and the phone numbers you type are never sent to our servers.

Internet Access and Third-Party Services

BookLibrary functions primarily offline. Internet access is requested only when you search for book metadata online, perform a Google Drive backup/restore operation, or transmit general usage data via Firebase Analytics.

When you scan a barcode or search for a book, the app sends the search query (ISBN, title, or author) to public online book databases to retrieve metadata such as title, author, publisher, cover image, and description.

Important details regarding these requests:

• Metadata search queries are sent directly to public metadata services to retrieve requested book details and are strictly distinct from analytics collection.
• Third-party metadata providers and Google/Firebase Analytics operate under their own independent privacy policies.

Children's Privacy

BookLibrary is not directed toward children under the age of 13. We do not knowingly collect or solicit personal information from children under 13.

Data Security

Because your library data is stored locally on your device (and optionally within your private Google Drive), its security depends heavily on your own security settings (such as device encryption, passcodes, and Google account security). While no method of electronic storage or transmission is 100% secure, AppCrunchStudio follows reasonable measures and industry best practices to protect the app.

Your Rights & Data Management

You have control over the data managed by BookLibrary:

• Local Data — You can edit or delete any book record, borrower contact number, note, or history directly within the app at any time, or clear app storage/uninstall the app to delete all local data.
• Google Drive Backups — You can delete the BookLibraryBackups folder directly from your Google Drive account at any time.
• Analytics Data — Analytics data collected by Firebase Analytics/Google Analytics is retained and managed according to Google's standard data retention policies.

Changes to This Privacy Policy

We may update our Privacy Policy from time to time. Any changes will be reflected on this page with a revised "Last Updated" date. We advise you to review this Privacy Policy periodically for any updates.

Contact Us

If you have any questions, suggestions, or concerns about this Privacy Policy, please feel free to reach out to us:

AppCrunchStudio
support@appcrunchstudio.com