TenX vs 오답노트AI
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
TenX
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No more apps that just hand you the answer. TenX is an AI study coach that solves problems across every subject—math, English, science, and more—from a single photo. Instead of giving you the answer, it guides your thinking so you build the ability to solve problems on your own. ※ Just snap a photo to begin Take a picture of a problem or pick one from your gallery. AI automatically recognizes equations, diagrams, and text, then sorts each problem by subject, topic, and difficulty. Whatever the subject, one photo is all it takes. ※ Step-by-step guidance — the process, not just the answer TenX won't simply tell you the answer. Instead, it asks: "What are we trying to find here?" "Which concept do you need?" "What's the first step?" It responds to your answers with feedback and naturally guides you to the next step—like having a tutor sitting right beside you. ※ Socratic hint system Stuck on a step? No problem. Hints come in three levels: Gentle hint: points you in the right direction. Strong hint: suggests a concrete approach. Full walkthrough: shows the entire solution, step by step. You get every chance to solve it yourself, with the right help exactly when you need it. ※ Mistake analysis and concept connections Wrong answers aren't just brushed aside. AI diagnoses exactly why you missed it—whether it was a calculation slip or a gap in understanding—and recommends the prerequisite concepts you need to shore up. It also serves up similar problems so you can turn weak spots into strengths. ※ Automatic mistake notebook Every problem you miss is saved automatically, building your own personal mistake notebook. See your weak areas at a glance and review efficiently before a test. It's the perfect review tool for exams, quizzes, and finals. ※ Visualize your thinking Understand the problem → organize the conditions → choose a strategy → calculate → verify. TenX maps out the entire solution process visually, so you can see exactly where you got stuck. ※ Who it's for Middle schoolers who know the concepts but struggle to apply them High schoolers who need to study efficiently with limited time Students who keep making the same type of mistake Anyone who wants to learn independently, without a tutor or paid lectures ※ What makes TenX different Most apps show you the answer and the solution the moment you enter a problem. Convenient—but that alone doesn't build real skill. TenX puts your own thinking and problem-solving at the center. AI here isn't a tool that hands you answers; it's a coach that builds your reasoning. Learning, in the end, is something you do yourself. TenX is with you every step of the way. ※ Terms of Use: https://www.silmaril.io/en/projects/tenx/terms ※ Privacy Policy: https://www.silmaril.io/en/projects/tenx/privacy
오답노트AI
This app uses AI to automatically create personalized study notes and practice tests from your incorrect answers. Simply photograph your mistakes, and the AI will transcribe them, organize them by subject, and generate similar problems for further practice. It also offers an AI tutor for instant help and tracks your progress with weekly reports.
- AI-generated study notes from photos
- Automatic organization by subject and unit
- Personalized practice tests with similar problems
- AI tutor for instant help with questions
- Spaced repetition for review
- Weekly progress reports
- Printable PDF test creation
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찍기만 하세요. 오답노트는 AI가 만듭니다. 틀린 문제를 오려 붙이고 옮겨 적다 보면, 정작 다시 풀 시간이 없습니다. 오답노트AI는 사진 한 장으로 그 과정을 대신합니다. 이렇게 작동해요 • 틀린 문제를 찍고 영역만 맞추면 끝 — 지문과 보기는 AI가 읽어 옮겨 적습니다 • 그래프·도형처럼 눈으로 봐야 아는 값은 맞게 읽었는지 한 번 물어봅니다 • 과목과 단원으로 알아서 정리되고, 다시 볼 때가 되면 올라옵니다 정답부터 보여주지 않아요 • 힌트 → 풀이 방향 → 단계 해설 → 정답 순서로 하나씩 열립니다 • 필요한 만큼만 보고 다시 풀어봐도 됩니다 • 설명 방식과 말투를 고르면 해설도 그 결대로 옵니다 막히면 AI튜터에게 바로 • 공부하다 막힌 문제를 찍어서 바로 물어보세요 — 오답 등록 없이도 됩니다 • 대화는 저장돼요. 어제 하던 질문을 오늘 이어서 할 수 있어요 • 등록해 둔 내 문제를 불러와 이어서 질문할 수도 있어요 복습이 알아서 돌아와요 • 정답을 확인한 문제는 다음 날 "다시 풀 문제"로 돌아옵니다 • 맞히면 3일 뒤 한 번 더, 두 번 연속 맞히면 학습 완료 • 다시 풀 문제가 있는 날 저녁에 알려드려요 (시각 변경·끄기 가능) 같은 문제를 또 푸는 대신 • 숫자와 조건을 바꾼 유사문제를 만들어 줍니다 • 앱이 직접 풀어보고 정답이 맞은 문제만 내보냅니다 내 오답만 모은 시험지 • 틀린 문제만 골라 한 장으로 묶어 시험처럼 풀 수 있어요 • 유사문제로 바꿔 출제하면 채점과 성적표까지 나옵니다 • PDF로 뽑아 인쇄해서 손으로 풀 수도 있습니다 (정답지는 맨 뒤에 따로) 일주일의 노력이 쌓입니다 • 일요일 아침, 한 주 동안 등록하고 복습한 기록을 주간 리포트로 정리해 드려요 • 단원별 오답 수와 며칠째 이어왔는지, 어디가 약한지도 한눈에 오답노트AI Pro (선택 구독) 무제한 오답 정리, 무제한 유사문제, 무제한 AI 질문, 문제지 PDF 추출을 이용할 수 있어요. • 월간(₩9,900) 또는 연간(₩79,000) 자동갱신 구독이며, 기간 종료 24시간 전까지 해지하지 않으면 자동 갱신됩니다 • 결제는 Apple ID 계정으로 청구되며, 구독 관리·해지는 App Store 설정에서 언제든 가능합니다 • 이용약관: https://odapnote.ai.kr/terms • 개인정보처리방침: https://odapnote.ai.kr/privacy
Screenshots
Verdict
The clearest difference is ads: 오답노트AI at none against TenX's shown. 오답노트AI also leads on update cadence (every 2 days vs fortnightly). TenX's advantage is iOS requirement (15.0 vs 18.0). On price, in-app purchases 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. TenX sells 2 in-app purchases, starting at $9.99 per month and 오답노트AI sells 2 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.
TenX ships an update fortnightly, 오답노트AI every 2 days. The most recent releases landed on November 9, 2026 and November 5, 2026 respectively.
| Parameter | TenX | 오답노트AI |
|---|---|---|
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| Update frequency | Fortnightly | Every 2 days — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | — | Freemium |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 13 MB | 33 MB |
| Age rating | 4+ | 4+ |
| Developer | Silmaril Technologies Inc. | 2Labs |
In-app purchases
TenX
- Pro Monthly$9.991 Month
- Pro Yearly7 Days trial$59.991 Year
오답노트AI
- 오답노트AI Pro 월간$9.991 Month
- 오답노트AI Pro 연간$79.991 Year









