Leaders Book
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This Privacy Policy explains how Leaders Book handles your data.
What we collect: Your name, rank, unit, and PIN — entered by you during setup. Soldier records you choose to enter — stored on your device only. TOU acceptance timestamp — stored on our server for legal compliance.
What we do NOT collect:
Where your data lives: On your device. Encrypted. Only you can read it.
This Privacy Policy describes how Leaders Book ("Leaders Book," "we," "us," or "our") collects, uses, stores, and protects information in connection with the Leaders Book formation management application (the "Application"). This Policy applies to all versions of the Application including the Android and Windows releases and any future platform releases.
Leaders Book is designed as a local-first, privacy-preserving application. The primary architectural decision underlying this Policy is that formation data — including all Soldier personally identifiable information — is stored exclusively on the user's device and is never transmitted to or stored on servers operated by Leaders Book.
Leaders Book is an independent software product developed and operated as a private commercial application. Leaders Book is not affiliated with, endorsed by, or connected to the United States Department of Defense, the United States Army, or any federal government agency.
The following information is entered by you and stored exclusively on your device in an encrypted SQLite database. Leaders Book does not transmit, receive, store, or have access to this information:
All data above is encrypted using AES-256 (SQLCipher) and stored on your device. The encryption key is derived from your PIN and device hardware security features. Leaders Book has no ability to access, decrypt, or recover this data.
Terms of Use acceptance record: When you accept the Terms of Use, we record a device identifier (UUID, not tied to your identity), optional name/email if provided, TOU version, SHA-256 hash of the document you saw, acceptance timestamp, IP address, platform, and app version. This record is retained solely for legal compliance.
Subscription data: Subscription status, renewal date, and transaction identifiers received from RevenueCat, Stripe, or Google Play Billing. We do not receive or store your payment card information.
AI generation requests: When you use AI counseling generation, your request is transmitted directly from your device to Anthropic's API. Leaders Book does not receive, log, or store AI generation requests. Anthropic's Privacy Policy applies.
Crash reports: Anonymized crash reports may be transmitted to Sentry. These contain stack traces and app context, never formation data.
We do not use any collected information for advertising, marketing profiling, behavioral analytics, or sale to third parties.
We share limited data with service providers who help operate the application. Each provider receives only data necessary for their function:
We never sell your personal information. We never share Soldier PII with any third party — because we never have access to it.
All formation data is encrypted at rest using AES-256 (SQLCipher). The encryption key is derived from your PIN plus hardware-backed key material from Android Keystore or Windows DPAPI. All data transmitted between the app and external services uses TLS 1.2 or higher.
Because formation data is stored exclusively on your device, security depends substantially on your device security. We strongly recommend enabling device lock, keeping your OS updated, enabling device encryption, and regularly exporting encrypted backups.
Because on-device data is encrypted with a key derived from your PIN and sealed by your device's hardware keystore, we cannot recover data stored on your device. If you forget your PIN, lose your device, or uninstall the Application, the data is permanently unrecoverable. See Section 9 of the Terms of Use for the complete set of data-loss warnings.
You can view, edit, export, or delete all formation data directly within the app. Uninstalling the app removes all locally stored data.
For TOU acceptance records and subscription data we hold, contact [email protected] to request access, correction, or deletion. We respond within 30 days.
Leaders Book is intended for adults 18 years or older. We do not knowingly collect information from children under 13.
Leaders Book is not approved for classified information at any level. Do not store CONFIDENTIAL, SECRET, TOP SECRET, SCI, or SAP information in this Application. Doing so may constitute a federal criminal offense.
We may update this Privacy Policy periodically. Material changes will be communicated via in-app notification or email at least 30 days before taking effect. The current version is always available at leadersbook.app/privacy/.
This Privacy Policy is governed by the laws of the State of Tennessee, United States of America.