Privacy is the product, not a setting. Here is what that means in practice.
The messenger has no account to profile
Your identity is generated on your device. There is no phone number, email, or account behind the app, so there is no profile for Sentinel to build or hold.
Message contents are end-to-end encrypted
Messages are encrypted on your device and decrypted only on your recipient’s. Private keys are generated and stored locally and are never transmitted to our servers.
No tracking, no ads, no data sold
Sentinel runs no advertising or behavioral-analytics SDKs inside the messenger, and does not sell data. Your contacts and address book are never uploaded.
Purchase data is kept to the minimum
Checkout is handled by our payment provider, Paddle. We keep only what is needed to deliver your license and provide support — your token unlocks downloads and is stored only as a keyed hash.
Questions about privacy? Write to privacy@sentinelobscura.com.