Study cards with spaced repetition based on the Ebbinghaus forgetting curve. Add text, images, and PDFs in bulk. Edit cards with text masking, image overlays, and auto-text recognition. Search, sort, and organize cards with tags and folders.
by 海云 吴★ 5.012 ratingsEducationFreeData updated 2026-09-19
Convert images to PDFs with high-quality output. Scan documents and extract text using OCR technology. Decode QR codes instantly. All features are available for free.
Play files by dragging them into the playlist. Display waveform visualizations. Support for common formats. No additional features beyond basic playback and visualization.