拍照一键抹除
自动校正拍摄内容，清理大部分手写笔迹，还原近似空白试卷。
One-tap Cleanup
Auto-corrects captures and removes most handwriting for near-blank sheets.
上岸-考公错题本 ErrorBook for Exams
超好用的【试卷】和【错题】整理工具，让纸质资料秒变可管理的“电子题库”。
A powerful exam and mistake organizer that turns paper into a manageable digital question bank.
已上架小米、OPPO、vivo、荣耀应用市场
Now available on Xiaomi, OPPO, vivo, and HONOR App Markets.
应用截图 Screenshots
功能亮点 Highlights
让复习和整理不再手忙脚乱，把时间留给真正的学习。
Stay organized and leave more time for real learning.
保留/淡化笔迹
智能保留手写痕迹，生成清晰黑白图，便于打印与查看。
Keep Handwriting
Preserve or fade handwriting into crisp black-and-white prints.
OCR 文字识别
擦除后再识别，文字提取更精准，便于编辑与搜索。
OCR Text Extraction
Extract editable text for search and reuse.
自定义组卷
多张试卷/错题自由组合成同一套练习。
Custom Sets
Combine multiple pages into a single practice set.
PDF 导出与查看
一键导出 PDF，便于打印、分享与保存。
PDF Export
Export and print your collections in one tap.
iCloud 同步
iPhone / iPad 自动一致，重装也不丢数据。
iCloud Sync
Stay consistent across devices, even after reinstall.
典型使用场景 Use Cases
把时间留给真正的学习。
Save your energy for what truly matters.
试卷想反复刷
满是笔迹的试卷拍照后一键抹除，重新练一遍像新卷。
Redo Exam Papers
Erase notes and retry as if it were a fresh sheet.
错题想集中练
随手拍错题，按章节组合成 PDF 错题集，专项突破更高效。
Focus on Mistakes
Snap mistakes and merge them into targeted PDF sets.