TangVision - Screen Distance

Does your child keep moving closer to the screen or book?

TangVision gently helps children notice their viewing distance while reading, studying, or using an iPad—without pressure, interruptions, or complicated setup.

Designed for everyday family routines, TangVision helps turn distance awareness into a simple, comfortable habit.

KEY FEATURES

REAL-TIME DISTANCE GUIDANCE
Receive a gentle reminder when the viewing distance becomes too close.

FLEXIBLE SESSION CONTROL
Choose any session duration with the interactive timeline, whether you are reading, studying, or using a screen for a short break.

PERSONALIZED REMINDER SOUNDS
Choose from system sounds, text-to-speech reminders, or your own recorded voice.

SMART PLANS
Create personalized routines with individual steps, start times, end times, durations, and reminder sounds.

INSIGHTS AND HISTORY
Review today’s activity and explore your viewing patterns over time.

PRIVATE BY DESIGN
Your viewing history is primarily stored on your device, giving your family more control over personal usage data.

A STORY FROM REAL FAMILY LIFE

TangVision was inspired by the developer’s son. While watching an iPad or reading a book, he often moved closer without realizing it. The goal was to create a calm and supportive way to raise awareness—without making children feel anxious or constantly corrected.

TangVision is a daily habit-support tool. It is not a medical device and does not diagnose, treat, or prevent myopia.