Stone Apps

Small, quiet tools for artists. On device. No ads. No tracking.
为画画的人做的小工具。全部本机处理，无广告，不追踪。

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  Drawing Grid · 绘画网格Put a precise grid on any photo. · 给照片加上精确网格。
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  Lightbox Trace · 描图灯箱Turn your screen into a light box. · 把屏幕变成拷贝台。