StudyIt vs DuoSub

Stop wasting hours making flashcards by hand. StudyIt scans your textbooks and PDFs, then automatically builds smart flashcard decks and quizzes using AI -- in seconds. Just point, scan, and start studying. HOW IT WORKS - Scan any textbook page or upload a PDF - AI reads the content and creates ready-to-study decks - Choose which chapters to include before generating - Review with spaced repetition or take a daily quiz - Track your progress with detailed statistics FEATURES OCR SCANNING Point your camera at any printed page -- textbooks, lecture notes, handouts -- and StudyIt pulls out the text accurately. PDF IMPORT Upload any PDF directly. Study from course packs, papers, or your own documents. AI DECK GENERATION AI turns your content into multiple card types: multiple choice, true/false, fill-in-the-blank, and short answer. No manual typing required. CHAPTER SELECTION Choose exactly which chapters or sections to include before generating. Full control over what you study. SPACED REPETITION Science-backed scheduling shows you cards right before you'd forget them. Study less, remember more. DAILY QUIZ Build a study habit with a daily quiz drawn from your decks. Track your streak and stay consistent. STATISTICS See your accuracy, streaks, and progress across every deck. Know exactly where to focus next. DARK MODE Easy on the eyes for late-night study sessions. WHO IT'S FOR - University and college students - High school exam preppers - Professional certification candidates - Anyone who retains more by actively testing themselves Download free and make your next study session count. Terms of Use: https://studyitapp.com/terms

Watch YouTube in two languages at once. DuoSub plays a video with two subtitle lines: the original line, and your own language right underneath it. Nothing to download, no subtitle files to hunt for, no settings to fight with. HOW IT WORKS 1. Bring in a video — paste a link, share it from the YouTube app, or find it in the built-in Browse tab. 2. Choose the language for the second line. 3. Press play. Both lines run with the video, word by word. WHAT YOU GET • Dual subtitles — the original on top, your translation below, always in sync. • 90 languages for the translated line, from Vietnamese, Spanish and Japanese to Arabic, Hindi and Ukrainian. • Karaoke highlighting that frames the word being spoken, so you never lose your place. • A full transcript that scrolls along with the video — tap any line to jump to that moment. • Your subtitles, your way: text size, a colour for each line, karaoke on or off — adjustable without leaving fullscreen. • A real player: drag the seek bar, tap to pause, swipe for brightness and volume, hold for 2x, lock the screen. • A library that keeps every video you add, with its subtitles saved on your device so replays start instantly. • The app itself in 12 languages, switchable any time without a restart. WHO IT'S FOR People learning a language from real videos instead of textbook audio. Listeners who want an hour-long podcast to stop being a wall of sound. Students following courses recorded in another language. Anyone reading foreign news and documentaries as they play. DUOSUB PRO Free: translate up to 3 new videos a day. Videos that have already been translated open for free and don't use up your daily count. Pro: unlimited translation, every language, every day. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://duosub-1ae27.web.app/privacy GOOD TO KNOW DuoSub works with videos that have captions available. Videos play through YouTube's own player — DuoSub does not download or store video. DuoSub is an independent app and is not affiliated with, endorsed by or sponsored by YouTube or Google.