Apps by HappyTimes Tech Co., Ltd.
QuickErrNote-AI Error Notebook app icon

Utilities

QuickErrNote-AI Error Notebook

HappyTimes Tech Co., Ltd.

Free download In-app purchases
Open on Apple

About this app

QuickErrorNote-AI Error Notebook Tired of manually copying wrong questions? QuickErrorNote helps you organize study material efficiently. Snap photos of your homework or exam mistakes. The AI provides complete solutions and generates variant exercises to strengthen your weak points. —————————————— Key Features —————————————— - Snap to save wrong questions Capture images of exercises. Image rotation and cropping are supported for fast error collection. - AI Analysis & Variant Exercises AI analyzes each question and delivers standard solutions. Generate custom variant exercises to master knowledge points. - Organize your error library Sort wrong questions by subject and knowledge topics for quick lookup and focused review. - PDF Export & Printing Build custom exercise sets and export PDF documents. Choose whether to include solutions for printing. - Generation History All generated documents are saved. You can view past exercises and re-export PDF files anytime. ‑ Personalized Review Schedule Receive daily revision reminders and view the proportion of mistakes in each subject to make targeted improvements. - Multi-language Support AI outputs match your device system language automatically. This app includes in-app purchases. For support: globalfadeback@163.com Privacy Policy: https://scnwlelia0ru.feishu.cn/wiki/VNmnw6wzaimQwMkuYjYcQNuSnHd

Latest release

What’s New

Version 1.1 Aug 31, 2026

Performance improvements and bug fixes.

Audience growth

Ratings growth

Steady
7-day gain +0
Ratings / day 0.0
30-day gain +0
US rating-count history
0 ratings
0 Sep 3, 2026 · 0 ratings Sep 3, 2026

Baseline captured. Growth appears after the crawler observes a changed rating count.

Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.

Price tracking

Price intelligence

1 captured event
Current Free
Historical low Free
Paid → free 0×
Price history
Current Free
Free Sep 3, 2026 · Free Sep 3, 2026

First snapshot captured. The trend line starts after the next crawler price observation.

  1. First observed Sep 3, 2026 · 10:12 PM Free

Screenshots

QuickErrNote-AI Error Notebook iPhone screenshotQuickErrNote-AI Error Notebook iPhone screenshotQuickErrNote-AI Error Notebook iPhone screenshotQuickErrNote-AI Error Notebook iPhone screenshotQuickErrNote-AI Error Notebook iPhone screenshot QuickErrNote-AI Error Notebook iPad screenshotQuickErrNote-AI Error Notebook iPad screenshotQuickErrNote-AI Error Notebook iPad screenshotQuickErrNote-AI Error Notebook iPad screenshotQuickErrNote-AI Error Notebook iPad screenshot