Quiz in Group vs MistakeBook
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Quiz in Group
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Make and solve quizzes with your group! Leaders can auto-generate with AI. You can also have the group leader create questions in advance and invite members to solve them! And of course, leaders can play too! Leaders can instantly generate quizzes in bulk using the built-in AI! You can also copy our app's template, paste it into your favorite chat AI with a prompt like "Generate 100 questions about XXX in this format!", and then paste the results back into the app for easy bulk registration! By solving quizzes created by AI, you can easily deepen your knowledge on any topic you want to learn about! Highly recommended for anyone who wants to quickly review various quizzes for certifications, school studies, or test prep! [Easy 5-Step Guide!] 1. Create a Group: The leader creates a group. 2. Invite Members: Invite your friends using a QR code or the group name & password. 3. Post Quizzes: Members (and the leader!) post quiz questions. 4. Approve Quizzes: The leader checks and approves the submitted questions. 5. Start the Quiz: Approved quizzes can be played individually on everyone's device! [Packed with Features] 4-Choice Quizzes: The classic, easy-to-play multiple-choice format. Randomized Questions: The order changes every time, keeping it fresh and fun. Perfect for Review: Retake quizzes at lightning speed—ideal for studying, memorization, and retention. Scores & Timers: Records high scores and completion times. Leaders can view everyone's results in a list, making it great for awards and leaderboards. Quiz Analytics: Analyze your own posted quizzes to see which choices are picked the most. AI Quiz Generation: Group leaders can use the AI generation feature to instantly create batches of quizzes. Data Integration: Supports text-based import/export of quiz data. Makes backup, editing, and sharing a breeze!
MistakeBook
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Turn Every Mistake into Personalized Practice with AI Mistake Notebook is an AI-powered learning app for students and parents. Simply take a photo of any difficult question, and AI instantly recognizes it, generates the answer and explanation, identifies the key knowledge points, and saves it to your mistake notebook or favorites. But AI does more than recognize questions. Based on each student’s mistakes, weak areas, knowledge points, difficulty levels, and preferred question types, AI automatically creates personalized practice questions with complete answers and explanations. Students can focus on the topics they struggle with, while parents can generate targeted worksheets in seconds—without searching, copying, or manually organizing questions. From AI-powered question recognition to intelligent practice generation, every mistake becomes a smarter way to improve.
Screenshots
Verdict
The clearest difference is ads: MistakeBook at none against Quiz in Group's shown. Quiz in Group's advantage is update cadence (every 5 days vs monthly). On price, in-app purchases, device support and iOS requirement 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Quiz in Group ships an update every 5 days, MistakeBook monthly. Both last shipped on October 19, 2026.
| Parameter | Quiz in Group | MistakeBook |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 5 days — better | Monthly |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.0 | 16.6 — better |
| Further details — not scored | ||
| Size | 31 MB | 36 MB |
| Age rating | 4+ | 4+ |
| Developer | Satoshi Yamakawa | 志跃 王 |
In-app purchases
Quiz in Group
No in-app purchases
MistakeBook
No in-app purchases









