Know-It-All: AI Quiz Solver

Hien Dang

About this app

Know-It-All solves multiple-choice questions with your camera: point your phone at a question, tap Scan and get a suggested AI answer with a confidence estimate. No retyping.

Built for students, young learners who love a knowledge challenge, and anyone training for fast-paced quizzes, trivia game shows or classroom quiz games.

SCAN IT, GET THE ANSWER
• The app opens straight into the scanner: full-screen camera with a framing guide.
• Point it at a question in a notebook, textbook, printed test, slide or computer screen.
• Tap Scan: the frame freezes and text is recognized right on your phone.
• The answer appears under the frozen frame with a confidence score and per-option estimates.
• Tap "Scan next question" to keep going without typing anything.
• Use the flashlight in dim rooms, or pick a screenshot from your gallery.

FAST HOMEWORK HELP THAT SHOWS HOW SURE IT IS
• Supports multiple-choice questions with 2 to 6 options.
• The suggested answer is highlighted so you can compare it with your own work.
• Low-confidence answers come with a clear warning to double-check.
• Text misread? Quickly fix the scanned text and ask again.
• Your scan history is saved for review before a test.

TRAIN YOUR QUIZ REFLEXES
• Timed quizzes with four options and instant scoring.
• Explore community quizzes: Math, History, Geography, English and general knowledge.
• Create your own quizzes to practice with friends, public or private.

TYPE OR SPEAK WHEN YOU NEED TO
Question not on paper? Type it with its options, or say it out loud and turn your voice into text.

FOUR LANGUAGES
Interface and text scanning in English, Vietnamese, Japanese and Korean.

PRIVACY
Scanned images are processed on your phone; only the recognized text is sent to find an answer.

Note: AI answers can be wrong, especially for multi-step calculations. Confidence scores are AI estimates, not guarantees. Use Know-It-All for practice and study reference — not during an exam or a live competition — and follow the rules of your class, exam or contest.

What’s new

Know-It-All: AI Quiz Solver