LingRoll lite

LingRoll brings reading and listening together with flexible ebook layouts, rich TTS tools, and practical file management. Detailed Features 1. File Support • Supports TXT, DOC, DOCX, EPUB, MOBI, AZW3, PDF. DRM-protected files are not supported • Auto-detects text encoding and supports manual encoding selection • Extracts encrypted or unencrypted RAR, ZIP, and 7Z archives • PDF text extraction and OCR for scanned documents • Import via iTunes File Sharing, iCloud Drive, or WiFi transfer 2. Listening • Built-in iOS TTS voices • Narration and dialogue detection with separate voices • TTS text replacement for pronunciation, terms, and symbols • Long-paragraph optimization for smoother playback • Auto skip trailing silence • Custom background music, speed, pitch, and volume • Sleep timer • Listen while reading, scroll freely, or follow the playing paragraph • Home screen display during background playback • Progress styles: highlight, underline, line-by-line highlight, sentence underline • Headphone controls and custom lock screen display • Pre-download full-book audio 3. Reading • System fonts and custom font installation • Adjustable spacing, margins, first-line indent, hanging indent, and more • Custom background image with optional scroll-follow effect • Custom themes with RGBA colors • Chinese conversion between Simplified, Traditional, Hong Kong Traditional, and Taiwan Traditional • Tencent Translation API support • Auto scroll/auto page turn with adjustable speed • Auto reading modes: pixel scroll, line-by-line display, sentence underline • TOC parsing for TXT, EPUB, MOBI, and AZW3 • Original annotation display for EPUB/MOBI/AZW3 • Portrait and landscape layouts, rotation controls, and a page-curl option 4. Bookmarks and Notes • Categorized bookmarks • Notes with underline, wavy line, dashed line, double strikethrough, redaction line, border, and background color • Custom color for each note • Tap bookmarks or notes to jump • Export notes as Markdown or TXT 5. File Management • Real folder-based book management • Sort by name, size, date, type, or reading duration • Pin files and set folders to top, bottom, or hidden • Read covers from EPUB/MOBI/AZW3, or update via web search/photos • Rename files using built-in book titles • Search files, folders, and full text while reading • Recent imports for quick access • Browse WebDAV folders; upload from your library or iCloud; download to a chosen folder • Batch download/delete, rename, and move remote items 6. Format Conversion • Convert EPUB/MOBI/AZW3/PDF to TXT • Convert TXT to EPUB • Supports Chinese conversion and encoding selection • Preserves original TOC structure 7. Statistics • Daily reading/listening duration • Reading heatmap • Book progress 8. Security • Password and Touch ID/Face ID protection 9. Migration and Sync • Export/import reading history and personal settings • Export single or multiple themes • Add multiple WebDAV accounts and choose the active account • Sync the latest 100 reading records; choose a sync frequency or manual sync • Prompt to jump to a newer reading position from another device • Reading sync excludes books; transfer them with WebDAV file management Lite vs. Pro: The following features require Pro: • Microsoft Azure/Edge and MiMo TTS • Narration/dialogue detection and separate voices • Language-aware voice selection • TTS audio export • Offline TTS duration stats • Optimized long-paragraph playback • Automatic trailing-silence skip • Custom listening background music • Line-by-line highlights and sentence underlines • Font import and installation • TXT-to-EPUB conversion • Chinese conversion (Simplified, Traditional, Hong Kong, Taiwan) • Text translation and Tencent Translation • Reading statistics • Password and Touch ID/Face ID protection • WebDAV sync and file management • Backup/import of reading history, personal settings, theme colors