Learning & teaching · 3 tools compared
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Prices may changeFor Korean workbooks
QANDA ◐Free plan
It has a huge database of Korean textbook solutions to find the exact match. A single photo is all you need.
To understand the logic
ChatGPT ◐Free plan
You can ask for the reasoning behind each step and get simpler explanations. Always verify calculation results yourself.
Best free option
Gemini ◐Free plan
Upload photos and get step-by-step solutions for free. Focus on the process and double-check your answers.
Snap and solve on mobile
QANDA ◐Free plan
The app is optimized for quick photo recognition, making workbook scanning seamless. Daily free searches are limited.
| Item | QANDA | ChatGPT | Gemini |
|---|---|---|---|
| Price | ◐Free plan | ◐Free plan | ◐Free plan |
| Free limits | Free solution searches within a daily limit | Free plan available. Latest model has hourly usage limits, with caps on image generation and file uploads. | Free plan available. Daily limits apply to top-tier models and image/video generation. |
| Paid price | Premium ₩18,500/month | Go ₩13,000/month · Plus ₩29,000/month · Pro from ₩159,000/month | Google AI Pro ₩29,000/month, AI Ultra priced separately |
| Korean | ○KoreanKorean service. It has an extensive database of solutions for Korean textbooks and workbooks. | ○KoreanKorean support for both UI and chat. Voice conversation also supports Korean. | ○KoreanFull Korean support for UI and chat. Supports Korean voice conversations via Gemini Live. |
| Login | Required | Optional | Required |
| Platforms | iOS · Android · Web | Web · iOS · Android · Windows · macOS | Web · iOS · Android |
| File input | IMAGE | PDF, IMAGE, DOCX, XLSX, CSV, TXT | PDF, IMAGE, DOCX, XLSX, CSV, TXT, AUDIO, VIDEO |
| Solving method | Finds existing solutions from a photo match | Reads the problem and solves it step by step | Reads the problem and solves it step by step |
| Korean workbook support | Large database of Korean textbooks and workbooks | Solves problems but lacks textbook context | Solves problems but lacks textbook context |
| Common issues | May show solutions for a similar but different problem | Explanations look plausible even if calculations are wrong | Explanations look plausible even if calculations are wrong |
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Fastest for Korean workbook problems. It finds exact matching solutions from its vast database and has built-in review notes. If an exact match is missing, it shows similar problems, so check conditions carefully. Daily free limits apply quickly.
It solves and explains directly rather than matching problems. You can ask why at each step or request simpler explanations. However, calculations can be subtly wrong despite sound reasoning. Always double-check final numbers by hand.
Works similarly to ChatGPT but offers a generous free tier. Upload photos for step-by-step guidance. Like other LLMs, plausible explanations may hide arithmetic errors. With just a Google account, it is a practical free tool for students.
Choose based on whether you are working through workbooks or learning concepts. QANDA is fastest for finding matching workbook solutions. For deeper understanding, ask ChatGPT or Gemini. Gemini is great for long-term free use. Always try solving problems first; using AI only for checking helps concepts stick.
| Situation | Pick | Why |
|---|---|---|
| 🗣️ For Korean workbooks | QANDA | It has a huge database of Korean textbook solutions to find the exact match. A single photo is all you need. |
| 🌱 To understand the logic | ChatGPT | You can ask for the reasoning behind each step and get simpler explanations. Always verify calculation results yourself. |
| 🎒 Best free option | Gemini | Upload photos and get step-by-step solutions for free. Focus on the process and double-check your answers. |
| 📱 Snap and solve on mobile | QANDA | The app is optimized for quick photo recognition, making workbook scanning seamless. Daily free searches are limited. |
Not a ranking. Different situations, different answers.
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