Thread Mark vs Ariv
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Thread Mark
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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.
Ariv
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Ariv is a local-first second brain for notes, tasks, journaling, study, projects, and personal knowledge management. Capture ideas, organize work, search your vault, ask questions about your notes, and keep your thinking connected without building a complicated plugin setup. Everything is built in: - Markdown notes and daily writing - Smart dashboard for active work - Tasks and Kanban - Quick capture - Voice memos with transcription - Ask Brain, an AI assistant for your notes - Calendar-aware planning and meeting context - Graph view and visual maps - Templates and presentation mode - Unified search across files, tags, and content Ariv is designed around a simple idea: your notes have a life. New thoughts land in your inbox. Active notes stay visible while you are working on them. Older notes move out of the way but stay searchable, linkable, and ready to resurface when you need them. No manual filing system required. No weekend spent setting up plugins. Open the app and start thinking. Your files stay yours: - Notes are stored as plain Markdown - Works with existing Markdown folders and vaults - No proprietary format - No account required to use the local app - Optional end-to-end encrypted sync is available AI is optional and on your terms. Use your own API key, run supported local models, or use Ariv's managed AI add-on. Ask Brain can answer questions from your vault and point back to the notes it used. Whether you are a student, writer, researcher, developer, founder, or lifelong learner, Ariv gives you one place to capture, connect, and use what you know. Think freely. No setup required.
Screenshots
Verdict
The clearest difference is in-app purchases: Ariv at none against Thread Mark's 2. Ariv also leads on ads (none vs shown). Thread Mark's advantage is iOS requirement (13.0 vs 15.0). On price and device support 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
Both are free to download. Thread Mark sells 2 one-off in-app purchases. Ariv asks for nothing beyond the download.
| Parameter | Thread Mark | Ariv |
|---|---|---|
| Price | Free | Free |
| Update frequency | Fortnightly | โ |
| Ads | Yes | No โ better |
| In-app purchases | Yes | No โ better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 โ better | 15.0 |
| Further details โ not scored | ||
| Size | 49 MB | 86 MB |
| Age rating | 4+ | 4+ |
| Developer | Koya Kurauchi | Ariv Studios |
In-app purchases
Thread Mark
- Buy the Developer a Coffee$2.99
- ThreadMark Pro$9.99
Ariv
No in-app purchases









