# Thread Mark: Markdown Notes — Local Thread-Style Reader

> Local Thread-Style Reader (iPhone/iPad app by Koya Kurauchi.)

- Source: https://appshunter.io/ios/app/thread-mark-markdown-notes/id6775019899 (this page in markdown: same URL + `.md`)
- Developer: [Koya Kurauchi](https://appshunter.io/developer/1887146796)
- Category: Productivity, Utilities
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 13.0 · 49 MB
- Languages: American English
- Released: 2026-06-18
- Data updated: 2026-08-13
- User reviews in markdown: https://appshunter.io/ios/app/thread-mark-markdown-notes/id6775019899/reviews.md

## What is Thread Mark?

Welcome to ThreadMark, the ultimate local-first Markdown reader that transforms your personal notes, development logs, and reading materials into an immersive, thread-style reading experience!

Whether you're organizing a massive "Second Brain" or simply jotting down grocery lists, ThreadMark makes reading long documents on mobile incredibly fast, casual, and stress-free.

■ What is ThreadMark?
ThreadMark is a unique Markdown viewer and editor that parses your local files into a message board/forum structure. 
Simply select your local folder (Vault), and the app automatically treats your folders as "Boards", your .md files as "Threads", and paragraphs divided by headings as numbered "Posts". 

■ Who is this for?
- Heavy Markdown users looking for a lightweight, mobile-friendly way to browse their vast knowledge base.
- Users of desktop-based PKM (Personal Knowledge Management) tools who want a seamless, local mobile companion.
- Anyone who loves the scrollable, bite-sized reading experience of timelines and forum threads.
- Privacy advocates who prefer 100% offline, local storage without cloud lock-in.

■ Key Features
- Innovative Thread-Style UI
Documents are automatically split based on headings (e.g., ##) and displayed as numbered posts. Even a 10,000-word document becomes as easy to digest as scrolling through a social media feed.

- Rich Markdown Compatibility
Fully supports WikiLinks ([[Note Name]]) for bidirectional linking. Tap a dead link to instantly create a new thread. It also beautifully renders inline images, transclusions (embedding other .md files), and callouts (e.g., > [!info]).

- Powerful "Quote Anchors"
Navigate complex thoughts instantly. Type >>1, >>1-5, or >>1,3 to create interactive anchors. Tapping them opens a quick pop-up preview of the referenced sections without losing your scroll position.

- 100% Local & Secure
No accounts, no logins, and no forced cloud syncing. All data remains safely on your device's local storage, ensuring your private diaries and sensitive technical notes stay truly private.

■ Rich Customization
- Dual Viewing Modes
Switch seamlessly between the immersive "BBS Mode" (Board/Thread/Post layout) and the traditional "Standard Mode" (Folder/Note layout) depending on your mood.

- Beautiful Themes & Typography
Choose from a variety of carefully crafted themes, including a classic Retro Beige, pure Dark Mode, Dracula, and Cyberpunk. Includes a precise font scaler to build your perfect reading environment.

* Note: ThreadMark is free to use with optional ads. We offer a one-time lifetime purchase to remove ads completely, or you can temporarily hide ads for 6 hours by watching a short video.
* Note: This app is a local file viewer/editor. It does not connect to or browse external internet forum services.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| ThreadMark Pro | $9.99 | one-time |
| Buy the Developer a Coffee | $2.99 | one-time |



## Version history (last 2 releases)

### 1.0.1 — 2026-07-04

[LaTeX Formula Support & Zoom Viewer!]

- Added lightweight, fast native rendering for LaTeX formulas ($ ... $ and $$ ... $$) in Markdown.
- Tap block equations to open a fullscreen viewer where you can pinch-to-zoom, scroll, and rotate.
- Added explanations for math formulas to the tutorial guide.
- Fixed app freezes and crash bugs when rendering complex formulas and matrices.

### 1.0 — 2026-06-19

No release notes.

## More apps by Koya Kurauchi

- [PharCalc](https://appshunter.io/ios/app/pharcalc/id6760984463)
- [Omakase ごはん](https://appshunter.io/ios/app/omakase/id6762081317)

All apps by Koya Kurauchi: https://appshunter.io/developer/1887146796

---

*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-13.*