Best apps like 小兔关门

Light Teller

Quick and Easy Lux Meter

Free

This app uses your smartphone camera to measure ambient light levels, helping parents ensure their children's study spaces have adequate lighting to protect their vision and reduce myopia risk. It offers clear instructions and educational content on light's impact on eye health.

Geometric Shape Calculator

2D/3D geometry tools

Free

This app provides quick calculations for 2D and 3D geometric shapes, including angles, lengths, areas, and volumes. It features nearly 50 built-in shape examples across seven categories with diagrams and parameter descriptions, supporting multiple input methods for various problem conditions.