Chappy vs 制限QRコード
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Chappy
Snap a photo of your homework problem and get instant answers with an AI tutor. This app provides immediate explanations for questions, helping you understand concepts without waiting for a teacher. Simply take a picture, crop it, and receive your solution.
- AI-powered problem solver
- Instant answers
- Photo recognition for questions
- Immediate explanations
- Homework assistance
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Don't wait any longer for your teacher to solve the problem. Take a picture of the problem and find the answer by the AI tutor. Chappy provides immediate explanation of the question using AI model. Take a picture of the question, crop it, and check the answer. We're working hardly to improve the app. If you have any suggestions or questions, please email at any time. ---- ■ Email: bethechappy@gmail.com ■ Privacy Policy: https://chappylabs.com/privacy/policy
制限QRコード
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残念ながら日本の学校現場ではSafariの利用が制限されたiPadを使っている生徒がいます。 このQRコードリーダーを使えばSafariが制限されていてもウェブサイトにアクセスできます。 広告はなく無料でお使いいただけますし、ユーザーの情報収集もありませんので学校現場で安心してお使いいただけます。
Screenshots
Verdict
The clearest difference is ads: 制限QRコード at none against Chappy's shown. 制限QRコード also leads on device support (3 vs 1) and iOS requirement (15.2 vs 18.0). Chappy's advantage is update cadence (every 4 weeks vs every 4 months). On price and in-app purchases 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.
Chappy ships an update every 4 weeks, 制限QRコード every 4 months. The most recent releases landed on October 24, 2026 and October 5, 2026 respectively.
| Parameter | Chappy | 制限QRコード |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 44.0% of reviews | — |
| Update frequency | Every 4 weeks — better | Every 4 months |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported | — |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 18.0 | 15.2 — better |
| Further details — not scored | ||
| Size | 17 MB | 9 MB |
| Age rating | 4+ | 4+ |
| Developer | Saerom Shin | Kuniaki Fujimoto |
In-app purchases
Chappy
No in-app purchases
制限QRコード
No in-app purchases
