Markdown Mermaid vs Mdly
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Markdown Mermaid
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Simple, lightweight and easy to use markdown and mermaid viewer. Use this for reading through documents you download or use a url.
Mdly
This app provides a fast, read-only experience for viewing Markdown and Mermaid files across Apple devices. It offers seamless iCloud synchronization, powerful rendering of modern Markdown features, and inline support for various Mermaid diagrams, all within a distraction-free interface.
- Read-only Markdown viewing
- Mermaid diagram rendering
- iCloud Drive integration
- Full-text search
- Table of Contents navigation
- Dark and light themes
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Mdly is a fast, read-only Markdown viewer designed for effortless reading across iPhone, iPad, and Mac. Open your .md files directly from iCloud Drive or local folders and enjoy clean, distraction-free rendering anywhere. Built for developers, writers, and anyone who keeps documentation in Markdown, Mdly focuses on one thing: reading Markdown comfortably. Seamless iCloud Experience Access the same Markdown files across all your Apple devices. Files created on your Mac appear instantly on iPhone and iPad through iCloud sync. Powerful Markdown Rendering Mdly fully supports modern Markdown features: - Headings, lists, tables, blockquotes - Syntax-highlighted code blocks - GitHub-style Markdown rendering Mermaid Diagram Support Render Mermaid diagrams inline, including: - Flowcharts - Sequence diagram - Timelines and more Perfect for viewing technical documentation on the go. Designed for Reading Mdly is intentionally read-only — no editing distractions. - Slide-up Table of Contents navigation - Full-text search across files - Recent files access - Dark and light themes - Clean typography optimized for long reading
Screenshots
Verdict
The clearest difference is price: Markdown Mermaid at Free against Mdly's $1.99. Markdown Mermaid also leads on iOS requirement (15.0 vs 18.0). Mdly's advantage is update cadence (every 2 weeks vs every 3 months) and chart position (#150 vs unranked). On ads, in-app purchases and device support 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
Markdown Mermaid is free to download; Mdly costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Markdown Mermaid ships an update every 3 months, Mdly every 2 weeks. The most recent releases landed on September 20, 2026 and September 30, 2026 respectively.
| Parameter | Markdown Mermaid | Mdly |
|---|---|---|
| Price | Free — better | $1.99 |
| Positive reviews | — | 0.0% of reviews |
| Update frequency | Every 3 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Paid |
| Best chart rank | — | #150 — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Requires iOS | 15.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 44 MB | 16 MB |
| Age rating | 4+ | 4+ |
| Developer | Mark Duenas | Yuta Hoshina |
In-app purchases
Markdown Mermaid
No in-app purchases
Mdly
No in-app purchases
