CharaBen: Quiz & Flashcards

Your favorite image can become the reason you start one more question. CharaBen is an iPhone study app where you create a study partner inspired by your favorite character (or "oshi") using your own image, name, and lines, then study your own decks together. Make your own character Pick an image, give it a name, and your study partner is ready. Crop images by dragging and zooming, with transparent PNG backgrounds preserved. Choose a speaking style from line presets, write your own lines, or add audio. Study together Your character reacts with different expressions and messages when you answer correctly, miss a question, build a streak, or finish a session. Turn anything you want to remember into multiple-choice questions and flashcards, and start with just one question. Choose your theme • Simple: a clean default theme, with dark mode support • Pastel: a soft pink, lavender, and mint palette • Chill: a fresh palette of light blue and yellow-green • Gaming: a glowing neon palette Pick the effect for correct answers: None, Calm, or Lively. Set a favorite photo as the background. Create multiple-choice questions and flashcards directly in the app, or paste the included prompts into a generative AI service such as ChatGPT and import the questions and character lines it creates. CharaBen does not connect directly to an AI service. Turn question explanations and deck overviews into infographics featuring your character and save them for quick review. You can also copy prompts for creating infographic images with an external generative AI service. Key features: • Create characters with your own images, names, expressions, lines, and audio • Crop character images and preserve transparent backgrounds • Choose a speaking style from line presets, including Mysterious • Character reactions for correct answers, mistakes, streaks, and results • Four themes: Simple, Pastel, Chill, and Gaming • Effects: None, Calm, or Lively • Set a favorite photo as the background • Save today's study record as a Today's Card image • Create and save infographics for question explanations and deck overviews • Import decks and character lines made with generative AI such as ChatGPT • Multiple-choice questions and flashcards • Organize decks with folders, pinning, and archiving • Start review and difficult questions quickly • View study history and review status • Small, medium, and large Home Screen widgets, with a selectable character for each widget • Export and restore backups Decks, study records, character settings, images, audio, and the background photo are stored on your device. Backups let you export the data you need as one file and restore it later. The app displays a fixed banner ad at the top. It does not show video or full-screen ads. A one-time purchase is available to remove banner ads. Google Mobile Ads SDK is used for ad delivery. See the privacy policy for details.