Item
¥1CNY
Screenshots come from the App Store listing. They are shown at full aspect ratio, never cropped. Click to enlarge.
From the App Store Source书籍护封尺寸助手是一款纯离线图书保护工具,适合藏书爱好者、二手书店、手作书衣用户和图书馆志愿者计算书衣护封展开尺寸、折边余量、书腰位置、材料用量和裁切记录。应用不需要登录,不联网,不收集用户数据,所有方案仅保存在本机。
The developer is hao du, and the app identifier is com.duhao.apps.dustJacketPlannerAlt.
It was first released on 2026-07-28, according to our own database record.
Every number in these answers comes from the data shown above on this page.