Nota6 vs ChatVault

Reader-first Markdown app for the AI era — with a built-in Reference Library so it's useful the moment you open it. BUILT-IN LIBRARY (12 references, all offline) The welcome screen has a "Browse Library" button. Tap it and you have 12 curated documents available immediately, in English and Simplified Chinese: • Markdown / GFM syntax references • Mermaid Diagram Gallery — 10 diagram types (flowchart, sequence, class, state, ER, gantt, pie, mindmap, timeline, git graph), each with source + rendered output • KaTeX Math Reference — symbols, operators, matrices, common formulas • Code Highlighting Gallery — Swift, Python, TypeScript, Go, Rust, SQL, and more (190+ languages bundled) • Reading AI-Generated Markdown — four shapes of agent output and how to read each • CLAUDE.md & AGENTS.md spec — how AI-instruction files work • README Patterns, Design Doc & RFC Patterns • Nota6 Tips & Tricks, iPad Keyboard Shortcuts, Themes Showcase These aren't placeholders — they're useful reading material for anyone who works with AI coding assistants and the .md files they produce. WHAT MAKES IT DIFFERENT FROM A BROWSER • Mermaid diagrams, KaTeX math, syntax-highlighted code, all rendered offline. No network requests during rendering. Safari Reader can't do Mermaid; Nota6 can. • Auto-refresh on file change with smart scroll anchoring: when an external editor rewrites the file, the preview re-renders in place and stays at the same heading even if the document length shifts. • Open files from anywhere via the system share sheet, Files, iCloud Drive, or the "Open in Nota6" action. iOS-NATIVE INTEGRATIONS • Shortcuts / App Intents: "Open Markdown File" and "Export Markdown as HTML" are first-class Shortcuts actions. Automate from Siri or your iPad keyboard. • iCloud sync: your theme, font, width, and Custom-theme colors follow you across iPhone, iPad, and Mac. • Workspace full-text search (⌘⇧F) across an entire folder of .md files. • Bookmark self-heal: if AI tooling renames or moves files in your workspace, Nota6 reattaches by content fingerprint instead of breaking. READING EXPERIENCE • Quick Edit: switch to Source, correct raw Markdown, and save with Command-S on a hardware keyboard. Nota6 preserves the original encoding, BOM, and line endings, and warns before overwriting external changes. • 5 themes: GitHub · Paper · Notion · Terminal · Custom. Custom lets you pick body + monospace fonts and 4 colors (background, text, heading, code block) right inside the app. • 4 font sizes, 3 reading widths, Light / Dark / Auto appearance. • Outline panel with live filter and scroll-synced active heading; floating breadcrumb when the outline is closed. • Per-file reading-progress dots in the workspace sidebar. • Click-to-zoom for Mermaid diagrams and images; long-press to Copy or Save as PNG. iPAD HARDWARE KEYBOARD Full shortcut set: ⌘O · ⇧⌘O · ⌘F · ⌘P · ⌥⌘O · ⌘R · ⌘[ / ⌘] · ⌘W. Press-and-hold ⌘ for the discoverability HUD. EXPORT PDF or self-contained HTML via the system share sheet — straight to Files, Mail, Slack, Notion, or any other destination. PRIVACY No analytics. No third-party SDKs. No network requests unless the document itself references remote images. Rendering libraries (KaTeX, Mermaid, highlight.js) are bundled offline. English + Simplified Chinese.

Your conversations hold memories, decisions, and important information. ChatVault AI lets you import, search, and understand your chat history — privately, without any account or cloud login required. IMPORT YOUR CHATS Import WhatsApp chat exports (.txt or .zip) directly from the Files app. ChatVault AI parses your messages, organizes them by date, and stores everything locally on your device. After import, you are automatically taken to the new chat. READ YOUR CHATS Browse imported conversations in a familiar message bubble layout, grouped by date. Tap any message to copy or hear it read aloud. Jump instantly to the top or bottom of any conversation. KEYWORD SEARCH ACROSS ALL CHATS Search every imported conversation at once using the built-in full-text search engine. Filter results by chat or date. Available on the free plan. AI SMART SEARCH — PREMIUM Ask questions in plain language and find messages by meaning, not just exact words. "When did we discuss the trip?" finds relevant messages even if those exact words never appear. Powered by on-device AI — nothing leaves your device. AI CHAT SUMMARY — PREMIUM Generate a structured summary of any chat: key topics, decisions, and action items. Choose Short, Medium, or Detailed length. Summarize the full chat or a specific date range. Copy or share the summary. Runs entirely on-device by default. An optional Enhanced Summary mode uses Apple Private Cloud Compute for very long chats — you choose when to enable it. TIMELINE DIGEST — PREMIUM See what happened across all your chats — or one specific chat — over the last day, week, month, or a custom date range. Each digest shows message counts and an AI-generated summary per chat. MEDIA GALLERY Browse all photos, videos, audio files, and documents from an imported chat in a tabbed gallery. Preview files with QuickLook. Select multiple items and export them via the share sheet. EXPORT YOUR CHATS Export any chat as a plain .txt file or a zip file and share it anywhere. CLICK TO CHAT Start a chat with any phone number — no need to save it as a contact first. Choose a country code, enter the number, and optionally pre-fill a message. APP LOCK & SECURITY Protect the entire app with Face ID, Touch ID, or a 6-digit passcode. Set auto-lock to trigger immediately, after 1, 5, or 15 minutes, or never. Brute-force protection locks the app after repeated failed attempts and shows a countdown timer. Passcodes are stored using PBKDF2 with a random salt in the iOS Keychain. ICLOUD BACKUP — PREMIUM Back up your imported chats to your private iCloud account. Backups are encrypted and stored in your personal iCloud — not accessible to anyone else. Restore from backup history at any time. You can also export a vault archive to the Files app. PRIVACY FIRST AI summaries and semantic search run entirely on this device using Apple's NaturalLanguage framework. No account is required. No messages are uploaded to any server unless you explicitly enable Enhanced Summary, which uses Apple Private Cloud Compute. You can optionally delete the original export file from Files after import. PREMIUM PLANS Upgrade to ChatVault AI Premium to unlock: unlimited chat imports (free plan allows 1), AI Smart Search, AI Chat Summary, Timeline Digest, and iCloud Backup. Choose Weekly, Monthly, or Yearly billing. Restore purchases at any time from Settings. Import your chats. Find what matters. Keep it private. DISCLAIMER WhatsApp is a trademark of WhatsApp LLC. ChatVault AI is an independent application and is not affiliated with, endorsed by, or sponsored by WhatsApp LLC or Meta Platforms, Inc. This app imports chat export files that users have created themselves using WhatsApp's built-in export feature. Privacy Policy : https://sites.google.com/view/chatvaulttc/home Apple Terms of Use : https://www.apple.com/legal/internet-services/itunes/dev/stdeula/