OK-ia Markdown Viewer

Markdown & Mermaid reader

Free

Open your Markdown files with Mermaid diagrams, Leaflet maps, callouts and entity highlighting — faithful to ok-ia.ch, 100% offline. OK-ia Markdown Viewer displays your Markdown files exactly as the ok-ia.ch viewer does — same typography, same colours, same rendering pipeline. FEATURES • Faithful Markdown rendering (headings, tables, lists, quotes) • Mermaid diagrams: flowchart, sequence, gantt, pie, mindmap — with full-screen zoom • Leaflet maps (Obsidian plugin style): positioned markers, CARTO/OSM base maps, full-screen button for portrait or landscape navigation • Obsidian callouts (note, tip, warning, bug…), wiki-links, entity highlighting (NER) • Document summary by Apple Intelligence — on-device, properly formatted (chapters, bold, lists) • Chat with the document: ask questions, structured answers grounded in its content alone, generated on-device (summary and chat require an Apple Intelligence capable device) • Siri, Spotlight and Shortcuts: “Open the latest report”, “Summarise a report”… • Automatic table of contents, in-document search, adjustable text size • Paginated PDF export (A4 or Letter), Word and PowerPoint; .md file sharing • Dark mode, portrait and landscape, iPhone + iPad + Mac • Interface in French, English, German, Spanish and Italian • 100% offline: rendering, diagrams, callouts and the AI summary need no connection (only the map base tiles load online) Open a .md file from Files, the iOS share sheet, another app, or a web link (mdviewer://). “What the algorithms still miss.” — ok-ia.ch

  • This app hasn’t received enough ratings or reviews to display an overview.

Five languages, and your reports become conversational. NEW • Interface in English, French, German, Spanish and Italian — the app follows your device's language, or the one you pick in Settings • Chat with the document: ask questions about the open report. Answers are structured into chapters and draw on its content alone • The opening screen offers questions taken from the document itself • Answers are written in the app's language, even when the report is written in another • PDF export on A4 (or Letter, depending on your region): a proper paginated document, ready to annotate with the Pencil in Notes or to send on. Maps and diagrams appear whole, and no heading is left stranded at the foot of a page FASTER, CLEARER • Image-heavy reports appear straight away: images load as you read instead of holding up the whole document • Entity highlighting now works whatever language the report is written in • Offline, a map says it is unavailable and lists its markers instead of showing a grey frame • Very large documents show a waiting message rather than an empty screen The summary and the chat require an Apple Intelligence-capable device (iOS 26 or later). Like the rest of the app, they run on the device: no text is sent anywhere.

The developer, Patrick Ostertag, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Collected

    The developer does not collect any data from this app.

    Privacy practices may vary, for example, based on the features you use or your age. Learn More

    The developer has not yet indicated which accessibility features this app supports. Learn More

    Seller
    • Patrick Ostertag
    Size
    • 5.3 MB
    Category
    • Productivity
    Compatibility
    Requires iOS 17.0 or later.
    • iPhone
      Requires iOS 17.0 or later.
    • iPad
      Requires iPadOS 17.0 or later.
    • Mac
      Requires macOS 14.0 or later.
    • Apple Vision
      Requires visionOS 1.0 or later.
    Languages
    English and 4 more
    • English, French, German, Italian, Spanish
    Age Rating
    4+
    Copyright
    • © 2026 OK-ia