BlinkRoll

BlinkRoll is an accessibility tool for users with upper-limb motor impairments who have difficulty repeatedly touching or swiping a screen. It uses the front camera to detect eye blinks and convert them into vertical scroll gestures on the current Android screen, helping users navigate apps and web content without using their hands.

Key features:
- One blink to scroll the current screen
- Scroll direction and movement distance controls
- Session distance shown for blink-controlled movement
- A small indicator that shows detection status
- Start and stop detection from notifications and Quick Settings
- Protective behavior when the screen is off or locked, access expires, or the device becomes hot
- Camera frames are processed only on the device
- Current-screen scrolling through Android Accessibility Service

Privacy:
BlinkRoll does not send or store camera frames, face images, or face landmark data on a server. Eye blink detection is processed on the device.

How to use:
1. Allow camera and notification permissions.
2. Turn on BlinkRoll scroll control in Android accessibility settings.
3. Start the free trial or watch 1 rewarded ad to open 30 minutes of access.
4. Adjust scroll direction or movement distance if needed.
5. Tap Start detection and scroll with eye blinks.

Safety:
BlinkRoll is not a medical, diagnostic, treatment, or vision protection app. Do not use while driving, walking, or performing dangerous tasks. Stop detection and rest if your eyes feel tired or uncomfortable. Detection accuracy may decrease in very dark environments, strong backlight, or unstable camera conditions.