SignLock: Signature App Lock

SignLock locks the apps you choose with a signature you draw. Your drawing is your password: a signature, a doodle, any shape. No pattern grids, no icons.

ACCESSIBILITY SERVICE DISCLOSURE
SignLock uses Android's AccessibilityService API. It is required for the app's core feature: detecting which app is currently open so SignLock can show its lock screen over the apps you chose to protect.
• What it does: the service reads only the name of the app that has just come to the foreground, and shows the SignLock lock screen over it when that app is protected. When you close the lock screen, SignLock sends you to the home screen.
• What it does not do: it does not read your messages, passwords, or anything else shown on screen, does not record or log what you do, does not change your phone's settings, and does not stop you from turning SignLock off or uninstalling it.
• No data is collected or shared through this service. The name of the open app is used on your device only.
• It is off until you turn it on. SignLock explains this before sending you to Android Settings, and you can turn it off at any time in Settings > Accessibility.

FEATURES
• Draw-to-unlock: lock any installed app with your own signature or drawing.
• Backup PIN in case you can't reproduce your drawing.
• Smart Schedule (Premium): lock apps only at the times you choose.
• Lock policies: ask for your drawing every time an app opens, or once until your screen locks.
• Change the app icon and name (Calculator, Gallery, Notes, Calendar, Clock) if you want SignLock to be less obvious on your home screen.
• Guardian mode (optional): a parent or trusted person can pair two devices by scanning a QR code and manage which apps are locked on the other device. The device being managed must approve the pairing first and can see what the other device is allowed to do. Guardian mode shares the list of installed apps and SignLock's status with the paired device.
• Available in English, Español, Français and हिन्दी.

PRIVACY
Your drawing and PIN are stored encrypted on your device and are never readable by us. SignLock uses the internet only for purchases through Google Play, ads in the free version, anonymous crash reports, and the optional Guardian pairing. See our privacy policy: https://www.nexbrothers.com/signlock/privacy-policy/

PREMIUM
SignLock is free with ads. A one-time Lifetime Premium purchase removes ads and unlocks Smart Schedule and all icon disguises.

PERMISSIONS
• Accessibility service: described above.
• Notifications: tells you if protection stops working.
• Camera: only to scan the pairing QR code in Guardian mode.
• Battery optimization exemption: recommended so Android doesn't stop the lock service.
• Exact alarms: so Smart Schedule starts and ends on time.