價格：免費
檔案大小：2 MB
版本需求：需要 iOS 7.1 或以上版本。與 iPhone、iPad 及 iPod touch 相容。
支援語言：英語
AlDraw is an app for making geometric constructions. Geometric construction means using only a compass and straightedge to draw geometric figures. You can draw lines, rays, line segments, circles and circular arcs. There are shortcuts for common steps in constructions. You can also fill in enclosed areas with colors. You can export any drawings you make to your photo camera roll.
支援平台：iPhone, iPad