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Vahai is out. - Turn PDFs, slides, photos, lecture recordings, YouTube links and web pages into practice questions - Every question carries a citation back to your source - Open-ended answers graded on meaning, with a regrade button - Fennec, your AI tutor, explains any question with sources - Offline study with automatic sync - AI study notes for any set - Streaks, XP, growing plants and constellations - with no penalties - 14 languages
Turn any PDF, lecture or video into quiz questions with real citations.
Most study apps ask you to type your own flashcards. Vahai reads your material and writes the questions for you - then proves where each one came from. Upload a lecture PDF, a slide deck, a photo of handwritten notes, a class recording, a YouTube link or a web page. Vahai extracts the concepts, writes practice questions and ties every single one to a citation in your source: the page in a PDF, the timestamp in a recording, the passage in an article. If a question cannot be traced back to your material, it is thrown away before you ever see it. EVERY QUESTION IS GROUNDED IN YOUR SOURCE Tap the source chip on any question and jump to the page, second or paragraph it came from. This is the whole point of the app: AI-generated study questions you can verify in one tap. OPEN-ENDED ANSWERS GRADED ON MEANING Write in your own words. Vahai scores understanding, not keyword matching. If you disagree with a score, one tap sends it back for review. UPLOAD ALMOST ANYTHING PDF, Word, PowerPoint and Excel files. Camera photos of textbooks, whiteboards and handwritten pages. Audio and video lecture recordings. YouTube links, web pages, Google Docs and plain text. Multiple sources can be merged into one study set. QUESTION TYPES Multiple choice, true/false, open-ended written answers and image occlusion for diagrams, maps and anatomy. BUILT FOR REAL STUDYING - Choose easy, medium or hard difficulty and 10, 18 or 25 questions - Explanations with proper math formatting and read-aloud - Offline study: download a set, answer without signal, sync later - Review, remove, regenerate or report questions before you start - Generate more questions for a set whenever you want FENNEC, YOUR AI TUTOR Ask for an analogy, a simpler explanation, or the difference between two concepts you keep mixing up. Every answer includes a citation back to your material. AI STUDY NOTES Generate structured notes for any study set, or write your own. Notes, sources and questions live together in one place. ORGANIZE AND SHARE Classes, folders and study sets keep a whole semester tidy. Share any set with a link so classmates can copy it into their own library. PROGRESS WITHOUT PUNISHMENT Daily streaks with freezes, XP and levels, a plant that grows with every study set, constellations that never break, and a time capsule you write to your future self. A missed day rests your oasis - it never kills it. WORKS IN 14 LANGUAGES Turkish, English, German, French, Spanish, Portuguese, Indonesian, Hindi and regional variants including Moroccan French and Gulf-facing options. Keep your source language or get tested in another one. GREAT FOR University and high school students, exam and test prep, medical and law students, language learners, and anyone revising from recorded lectures or scanned notes. FREE AND PREMIUM Free: 3 study sets a day, 3 classes, 10 sets, 15 tutor messages a day, 1 streak freeze a week. Premium: 50 study sets a day, unlimited classes and sets, 500 tutor messages a day, hard difficulty, custom question counts, larger uploads, 3 streak freezes a week. Premium is available monthly, yearly or as a one-time lifetime purchase, with a 7-day free trial. Subscriptions are billed through Google Play and renew automatically until cancelled in the Play Store subscriptions screen. Questions are generated by AI from the material you provide. Always check against your course material before an exam. Privacy Policy: https://vahai.app/privacy Terms: https://vahai.app/terms Support: support@vahai.app