교육디지털원패스 vs Chalcack
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
교육디지털원패스
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교육서비스 간편인증 로그인 기능 제공 애플리케이션 교육디지털원패스는 교직원 및 학생이 하나의 아이디로 여러 교육시스템을 이용할 수 있는 다양한 인증수단을 제공하는 인증 서비스입니다. 다양한 교육 서비스를 이용시 웹사이트마다 아이디를 일일이 기억할 필요 없이 하나의 아이디를 통해 여러 교육 서비스들을 이용할 수 있습니다. 교육디지털원패스에서는 편리하게 이용할 수 있도록 생체(지문, 안면), 모바일 핀/패턴 등 간편 인증 수단을 제공하고 있습니다. [서비스 대상] 현재는 일부 공공교육서비스에 대해 이용가능하며 향후 단계적으로 확대해 나갈 예정입니다. 이용가능 서비스 목록은 교육디지털원패스 웹사이트(https://edupass.neisplus.kr)에서 확인할 수 있습니다. [접근 권한] - 저장소: 사진, 영상, 파일을 기기에 저장하거나 게시하는데 필요합니다. - 카메라: 사진 촬영 및 업로드에 필요합니다. - 바이오 정보 권한: 본인 확인을 위한 지문, 안면 인증 시 사용합니다. - 전화 : 관련 기관 민원 연결을 위한 접근이 필요합니다. - 선택 접근 권한은 허용하지 않아도 앱을 이용할 수 있으나, 일부 기능이 제한될 수 있습니다. [서비스문의] 교육디지털원패스 PC버전 : https://edupass.neisplus.kr 중앙상담센터 연락처: 1600-7440
Chalcack
This AI-powered app helps students understand homework problems by providing step-by-step explanations in a personalized character's voice. Users can snap photos of any problem, ask follow-up questions, and save solved problems for review. It covers a wide range of subjects and allows for custom character creation.
- AI-powered homework explanations
- Step-by-step problem solving
- Personalized tutor characters
- Custom character creation
- Multi-subject support
- Handwritten problem recognition
- Saved problem review
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Chalcack is an AI homework helper: snap a photo of any problem and the character you picked explains every step, in their own voice. Free for 5 problems a day. Snap math, science, reading or history homework, handwritten or printed. Chalcack gives you the answer, a short summary, every step, and the concept the problem tests. Stuck on a step? Ask your character right there, and keep asking until it clicks. More than 180,000 students study with Chalcack. Study with your crush, not a cold answer key. ■ HOW IT WORKS 1. Snap the problem: handwriting, textbooks, worksheets and practice tests all work. 2. See the answer and why: every step, plus the concept behind it. 3. Ask about any step in the same thread. 4. Review before the test: solved problems are saved by subject. ■ YOUR CHARACTER, YOUR TUTOR • Pick from 7,900+ public characters made by students. • Make your own with a photo, a name and a personality. • Share it with a code and study with the same character as your friends. • Every solution and answer comes in your character's voice. ■ SUBJECTS • Math: pre-algebra, Algebra I & II, geometry, trigonometry, precalculus, calculus, statistics, word problems and proofs. Reads graphs and figures too. • Science: physics, chemistry, biology, earth science, with formulas and units in every step. • Reading & writing: literary devices, main idea, evidence, grammar, essay structure. • English: grammar, vocabulary, reading passages. • History & social studies: U.S. and world history, government, geography, economics. • Test prep: SAT®, ACT® and AP® style questions. ■ FREQUENTLY ASKED QUESTIONS Is Chalcack free? Yes. You get 5 problems and 20 questions free every day, and can watch an ad for more. PRO gives unlimited problems and questions with no ads. Does it read handwritten homework? Yes. Snap equations from your notebook or a problem you're halfway through. Graphs, tables and geometry figures work too. Won't I just copy the answer? Every answer shows the reason for each step, and you can keep asking about any step. Understand it, then try the problem again yourself. Does it explain wrong answer choices? Yes. It shows why the right answer is right and why each other choice doesn't fit. Can I make my own character? Yes. Choose a photo, a name and a personality. Keep it private or make it public for other students. Can AI make mistakes? Sometimes. If an answer looks off, ask your character to double-check, or report it from the solution screen. ■ SUBSCRIPTION INFORMATION • Chalcack PRO: unlimited problems and questions, no ads. • PRO Monthly: $9.99 per month. PRO Yearly: $79.99 per year (about $6.67 a month). Prices may vary by country. • Payment is charged to your Apple ID account at confirmation of purchase. • The subscription renews automatically unless canceled at least 24 hours before the end of the current period. • Manage your subscription and auto-renewal in your App Store account settings. Privacy Policy: https://www.chalcack.com/privacy Terms of Use (EULA): https://www.chalcack.com/terms
Screenshots
Verdict
The clearest difference is review sentiment: Chalcack at 97% against 교육디지털원패스's 5%. Chalcack also leads on update cadence (daily vs every 18 months) and ratings volume (18 vs 1). 교육디지털원패스's advantage is in-app purchases (none vs 4) and ads (none vs shown). On price 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
Both are free to download. Chalcack sells 4 in-app purchases, starting at $9.99 per month. 교육디지털원패스 asks for nothing beyond the download.
교육디지털원패스 holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Chalcack has 18 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 5% of 교육디지털원패스's written reviews are positive against 97% of Chalcack's, so the app with the better star average is not the one people write more warmly about.
교육디지털원패스 ships an update every 18 months, Chalcack daily. Both last shipped on November 12, 2026.
| Parameter | 교육디지털원패스 | Chalcack |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | 4.8 (18 ratings) |
| Positive reviews | 5.0% of reviews | 97.4% of reviews — better |
| Number of ratings | 1 | 18 — better |
| Update frequency | Every 18 months | Daily — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 12.0 — better | 18.5 |
| Further details — not scored | ||
| Size | 56 MB | 49 MB |
| Age rating | 4+ | 4+ |
| Developer | 한국교육학술정보원 | Dong Hae Jang |
Customer experience
교육디지털원패스
Chalcack
In-app purchases
교육디지털원패스
No in-app purchases
Chalcack
- Monthly Pro (Special Offer)1 Month trial$9.991 Month
- Premium subscription$9.991 Month
- Yearly Pro (Special Offer)1 Year trial$79.991 Year
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- Yearly Premium subscription$79.991 Year









