Comparison

OpenFlat vs 学霸错题本

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head

OpenFlat

Free

📚 Education

★ 5.02 ratingsView app →

About

OpenFlat

This app provides an online teaching platform for individual instructors, featuring interactive whiteboards, audio/video communication, presentation tools, and recording capabilities. Users can easily join, create, and schedule virtual classrooms. It aims to be the preferred tool for online educators.

Highlights

Multi-person online whiteboard
Audio and video communication
PPT presentation with animations
Room recording and playback
Screen sharing
Room creation, joining, and scheduling

Read full description

OpenFlat 是为个人老师设计的在线授课软件，支持多人在线白板互动、音视频交流、PPT 演示（包含动画效果）、房间录制和回放、屏幕共享等，个人用户可以直接通过微信、手机号验证码登录，登录成功后就可以方便的加入、创建、预定房间。目前我们仍然在持续优化产品体验，我们希望 OpenFlat 可以成为个人教师在线上课首选的教学工具。如果遇到使用问题，欢迎邮箱反馈：support@openflat.tech

About

学霸错题本

Features

Read full description

还在用纸质错题本抄题？费时费力还容易丢？学霸错题本帮你一键拍照收录，智能整理，科学复习，轻松告别同一道题反复出错。【核心功能】拍照收题，告别手抄拍照自动识别题目，一键收录错题支持批量导入，整张试卷快速提取题目 OCR智能文字识别，图文并存手写批注工具，直接在题目上标注重点科学复习，间隔记忆基于SM-2算法的间隔复习，到期自动提醒翻卡模式，左滑未掌握右滑已掌握随机测验模式，模拟真实考试按科目、难度、错因分类复习试卷管理，系统归档按考试创建试卷，关联错题支持按科目、年级、学期筛选试卷错题一键导出PDF，方便打印重做智能统计，精准提分错题总览：掌握率、正确率一目了然薄弱知识点TOP10分析，精准定位短板错因分布、难度分布、科目分布图表每周/每月趋势，见证进步轨迹 AI智能助手 AI解题：一键生成答案与解析 AI出题：根据错题自动生成同类练习知识点提取，帮你构建知识体系多维度整理 9大科目分类（语数英理化生史地政）错因分类：概念不清、计算错误、审题失误、粗心大意 5级难度标记 + 4级掌握度追踪彩色标记 + 自定义标签，灵活管理

Screenshots

OpenFlat3 screens

学霸错题本4 screens

Verdict

The call

The clearest difference is in-app purchases: 学霸错题本 at none against OpenFlat's 10. OpenFlat's advantage is update cadence (every 2 weeks vs monthly) and iOS requirement (13.0 vs 15.0). On price, ads and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. OpenFlat sells 10 in-app purchases, starting at $49.99 per month. 学霸错题本 asks for nothing beyond the download.

UpkeepUpdate frequency

OpenFlat ships an update every 2 weeks, 学霸错题本 monthly. The most recent releases landed on September 13, 2026 and August 21, 2026 respectively.

Scorecard3 real differences · 6 level

OpenFlat versus 学霸错题本: the parameters behind the verdict, then further details
Parameter	OpenFlat	学霸错题本
Price	Free	Free
Rating	5.0 (2 ratings) — better	—
Number of ratings	2 — better	—
Update frequency	Every 2 weeks — better	Monthly
Ads	No	No
In-app purchases	Yes	No — better
Monetization	Free with in-app purchases	—
Devices	iPhone, iPad, iPod — better	iPhone, iPod
Requires iOS	13.0 — better	15.0
Further details — not scored
Size	81 MB	4 MB
Age rating	4+	4+
Developer	柳杨	海波杨