Comparison

Thread Mark vs MDDock

Price, ratings, monetisation and update history for both apps, side by side โ€” with what reviewers say about each.

Head to head
About

Thread Mark

Features
Read full description

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. โ–  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". โ–  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. โ–  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. โ–  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.

About

MDDock

Features
Read full description

MDDock is a calm, local-first Markdown workspace for people who think in notes. Every note lives as plain Markdown on your device, so your ideas stay readable, portable, and yours โ€” no lock-in, no cloud dependency. Write in a clean, distraction-free editor with syntax highlighting and full Markdown support. Link ideas naturally with [[wiki links]] and let MDDock build a living knowledge graph as you write. Find anything in milliseconds with instant full-text search across your entire library. Read beautifully with desktop-grade typography, a focused reader mode, and support for code blocks, tables, math, and diagrams. On iPad, split the library and editor side by side so you can browse, write, and reference without losing context. Keep your library completely offline, or turn on MDDock Cloud to sync securely across your devices. Your data is encrypted end-to-end and always belongs to you. Whether you are building a personal wiki, journaling, drafting articles, or managing a research library, MDDock gives you the speed of plain text and the structure of a connected knowledge base.

Screenshots

Thread Mark4 screens
MDDock4 screens

Verdict

The call

The clearest difference is in-app purchases: MDDock at none against Thread Mark's 2. MDDock also leads on ads (none vs shown) and update cadence (every 2 days vs fortnightly). On price, device support and iOS requirement there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Thread Mark sells 2 one-off in-app purchases. MDDock asks for nothing beyond the download.

UpkeepUpdate frequency

Thread Mark ships an update fortnightly, MDDock every 2 days. Both last shipped on October 3, 2026.

Scorecard3 real differences ยท 3 level
Thread Mark versus MDDock: the parameters behind the verdict, then further details
ParameterThread MarkMDDock
PriceFreeFree
Update frequencyFortnightlyEvery 2 days โ€” better
AdsYesNo โ€” better
In-app purchasesYesNo โ€” better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.0 โ€” better14.0
Further details โ€” not scored
Size49 MB52 MB
Age rating4+4+
DeveloperKoya KurauchiๅŒ—ไบฌๅพฎๆ ผไบ’ๅŠจ็ง‘ๆŠ€่‚กไปฝๆœ‰้™ๅ…ฌๅธ

In-app purchases

2 purchases

Thread Mark

One-time2
  • Buy the Developer a Coffee$2.99
  • ThreadMark Pro$9.99
None

MDDock

No in-app purchases

Questions

Is Thread Mark free?
Thread Mark is free to download, with in-app purchases available.
Is MDDock free?
MDDock is free to download, with no in-app purchases.
Do Thread Mark or MDDock have ads?
Thread Mark shows ads; MDDock does not.
Which is updated more often, Thread Mark or MDDock?
Thread Mark ships an update fortnightly, and MDDock every 2 days. Most recently, Thread Mark was updated on October 3, 2026 and MDDock on October 3, 2026.

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