Merkdown vs Marklens
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Merkdown
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Merkdown is a clean, powerful Markdown editor with built-in Mermaid diagram support and AI-powered content generation. Write and preview Markdown in real time, create beautiful diagrams, and let AI help you generate content — all in one app. KEY FEATURES Markdown Editor Write Markdown with a clean, distraction-free editor. Switch between Edit and Preview tabs instantly. Autosave keeps your work safe. Mermaid Diagrams Create flowcharts, sequence diagrams, class diagrams, state diagrams, ER diagrams, Gantt charts, pie charts, mindmaps, timelines, and more — 14 diagram types rendered right in the preview. AI Content Generation Let AI write Markdown and Mermaid diagrams for you. Describe what you need, choose a diagram type, and generate content instantly. Powered by advanced AI technology. Share & Export Export your work as Markdown (.md), HTML (.html), or Image (.png). Share with anyone directly from the app. HIGHLIGHTS - Real-time Markdown preview - 14 Mermaid diagram types supported - AI-powered Markdown and diagram generation - Export as Markdown, HTML, or PNG image - Open .md files from other apps - Dark mode support - Autosave option - Available in 8 languages - Free to use (watch ads for AI coins) Write it down. Mermaid it out. Merkdown.
Marklens
This app is a fast, native Markdown viewer for macOS, iPadOS, and iPhone. It renders .md files instantly with beautiful typography, themes, syntax highlighting, and diagrams. Designed for reading, it offers a private and friction-free experience.
- Instant Markdown rendering
- Syntax highlighting for 30+ languages
- Mermaid diagram support
- GitHub-Flavored Markdown
- Light and dark themes
- Export to PDF
- Quick Look preview on macOS
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Marklens is a fast, native Markdown viewer for macOS, iPadOS, and iPhone. Open any .md file with a click and see it rendered immediately — beautiful typography, light and dark themes, syntax-highlighted code, and Mermaid diagrams. No editor, no library, no friction. HIGHLIGHTS • Instant render — every .md opens in a clean, focused window • 30+ language syntax highlighting via highlight.js, bundled offline • Mermaid 11 diagrams — flowcharts, sequence, state, xy-charts and more • GitHub-Flavored Markdown — tables, task lists, footnotes, strikethrough • Light and dark theme matching the system appearance • Quick Look on macOS — press Space on any .md in Finder for a rendered preview • Export to PDF on every platform • Pinch-to-zoom on iPadOS and iPhone, ⌘+ / ⌘− / ⌘0 on macOS • Open files via drag-and-drop, the Share Sheet, or the Files app MADE FOR READING Marklens doesn't try to be a notes app or a knowledge base. It opens a file, renders it perfectly, and gets out of the way. If you write Markdown in another tool — VS Code, Obsidian, GitHub, your favorite text editor — Marklens is the viewer you reach for to look at the result. PRIVATE BY DESIGN Marklens collects nothing. No analytics, no telemetry, no crash reports, no network requests. Every rendering asset — Mermaid, highlight.js, fonts — ships inside the app. Read the full privacy policy at https://donald-jackson.github.io/marklens/privacy/ OPEN SOURCE Marklens is MIT-licensed and developed in the open. Source, issues, and contribution guide live at https://github.com/donald-jackson/marklens.
Screenshots
Verdict
The clearest difference is ads: Marklens at none against Merkdown's shown. Marklens also leads on update cadence (monthly vs every 3 months) and device support (3 vs 1). Merkdown's advantage is iOS requirement (16.0 vs 18.0). On price and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Merkdown ships an update every 3 months, Marklens monthly. The most recent releases landed on September 13, 2026 and September 19, 2026 respectively.
| Parameter | Merkdown | Marklens |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (2 ratings) — better |
| Positive reviews | — | 0.0% of reviews |
| Number of ratings | — | 2 — better |
| Update frequency | Every 3 months | Monthly — better |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone | iPhone, iPad, Mac — better |
| Requires iOS | 16.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 33 MB | 4 MB |
| Age rating | 17+ | 4+ |
| Developer | HYUNWOO LEE | Donald Jackson |
In-app purchases
Merkdown
No in-app purchases
Marklens
No in-app purchases








