# KnowUp - AI Flashcards & Study — Scan notes, spaced repetition > Scan notes, spaced repetition (iPhone/iPad app by Wenfeng Duan.) - Source: https://appshunter.io/ios/app/knowup-ai-flashcards-and-study/id6779905080 (this page in markdown: same URL + `.md`) - Developer: [Wenfeng Duan](https://appshunter.io/developer/1454244715) - Category: Education, Productivity - Price: Free with in-app purchases - Age rating: 4+ - Requires: iOS 15.0 · 89 MB - Languages: American English - Released: 2026-07-05 - Data updated: 2026-08-13 - User reviews in markdown: https://appshunter.io/ios/app/knowup-ai-flashcards-and-study/id6779905080/reviews.md ## What is KnowUp? Remember what you learn. KnowUp is an AI-powered flashcard app that helps you remember more with less effort. Using spaced repetition, it reminds you to review at the right time—before you're likely to forget. Whether you're learning vocabulary, preparing for exams, or studying for school, KnowUp helps you build knowledge that lasts. ■Review at the Right Time Forgetting is a natural part of learning. Research suggests that much of what we learn fades quickly without review. KnowUp uses the proven SM-2 spaced repetition algorithm to schedule reviews based on your learning performance. Reviewing at the right intervals helps strengthen long-term memory while reducing unnecessary repetition. ■Create Flashcards with AI Creating flashcards shouldn't take longer than studying. Simply take a photo of your textbook, class handout, or notes. AI automatically extracts questions and creates flashcards for you. Review the generated cards, make any edits you want, and start learning in minutes. ■ AI explains answers clearly Instead of just memorizing the answer, you can learn while understanding why it is correct. For example sentences and questions, AI provides easy-to-understand explanations of the content and expressions, helping you deepen understanding as you review. ■ Import Anki and Quizlet content in bulk You can continue using the flashcards and study content you already have. Import Anki and Quizlet content in bulk and use it directly for review in KnowUp. It reduces the need to recreate cards from scratch, so you can start studying right away. ■Stay Motivated Every Day Learning is easier when you can see your progress. • Earn XP every time you review • Level up as you continue learning • Build daily study streaks • Track your retention and study habits with detailed statistics ■Learn Together Studying with friends makes it easier to stay consistent. Invite a study buddy with a QR code or invitation code, share your learning progress, and encourage each other along the way. Perfect for: • Language learning • English vocabulary • School subjects • Certification exams • Memorization • Lifelong learning Study smarter. Remember longer. Download KnowUp and make every review count. https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | knowup monthly | $2.99 | per month | | knowup annual | $24.99 | per year | ## Version history (last 5 releases) ### 2026.0720.3 — 2026-07-19 We've made several improvements and bug fixes. Thanks for using KnowUp! ### 2026.0720.1 — 2026-07-15 We've made several improvements and bug fixes. Thanks for using KnowUp! ### 2026.0720.0 — 2026-07-14 We've made several improvements and bug fixes. ・Redesigned the add-card screen. Photo OCR (create multiple cards from a single photo) now comes first, and the answer field is optional when adding cards by hand. ・Memory curve analysis is now free for everyone. ・Improved the difficulty filters (Hard / Ambiguous / Perfect) on the deck screen so they correctly show your reviewed cards. ・Cleaned up the card detail screen. ・Improved offline behavior, along with various bug fixes and performance improvements. Thanks for using KnowUp! ### 2026.0713.0 — 2026-07-12 This update adds two new features. ■ Ask Tomo — AI explains the answers, gently Go beyond memorizing answers and understand *why* they're correct. Tomo, your AI study buddy, breaks down example sentences and questions in plain language, so you can deepen your understanding as you review. ■ Import your Anki and Quizlet content in one go Bring the flashcards and study materials you already have into KnowUp. Import your Anki and Quizlet content in bulk and start reviewing right away — no need to rebuild your cards from scratch. We've also made small improvements and bug fixes. Thank you for using KnowUp — we'd love to hear your feedback! ### 2026.0710.0 — 2026-07-07 We've made performance improvements and fixed bugs. New in this update: • Create flashcards from photos. Simply take a photo of your textbook, handout, or notes, and AI will automatically extract questions and create flashcards for you. Spend less time creating cards and more time learning. Thanks for using KnowUp! Happy studying! ## More apps by Wenfeng Duan - [Murmio: AI Voice To-Do List](https://appshunter.io/ios/app/murmio-ai-voice-to-do-list/id6793503496) All apps by Wenfeng Duan: https://appshunter.io/developer/1454244715 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-13.*