K Kull Studio

Independent Android App Studio

Kull Studio

We build simple Android tools that make reading, browsing, and screen control more comfortable. Our first product is BlinkRoll, a hands-free scrolling app powered by eye blinks.

BlinkRoll app screen on Android
BlinkRoll Hands-free scrolling

Small apps with clear purpose.

Kull Studio is based in the Republic of Korea and develops Android applications for global users. We focus on practical, privacy-conscious tools that solve everyday interaction problems.

Accessibility

We design for users who need easier ways to control screens without repeated touch gestures.

Privacy

Where possible, sensitive signals are processed on the device instead of being uploaded.

Practicality

We test around real conditions such as lighting, distance, heat, and battery life.

BlinkRoll

BlinkRoll helps users scroll Android screens with intentional eye blinks after detection is started by the user.

Hands-free Android scrolling

BlinkRoll uses the front camera while detection is active and sends scroll gestures through Android Accessibility Service.

  • Eye-blink detection is processed on the device.
  • Camera frames and face images are not stored or uploaded.
  • Accessibility Service is used only for user-controlled scroll gestures.

Safety note

BlinkRoll is an accessibility and convenience tool. It is not a medical, diagnostic, treatment, rehabilitation, vision protection, or eye health product.

  • !Do not use while driving, walking, or performing dangerous tasks.
  • !Stop detection and rest if your eyes feel tired or uncomfortable.
  • !Recognition can vary by lighting, device performance, face angle, and heat.

Contact

For app support, privacy questions, or business inquiries, contact Kull Studio.

Business name

Kull Studio

Email

kullstudio854@gmail.com

Policies

Privacy Policy · Terms & Safety