Comparison

MDash vs MermaidSketch

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

Head to head
About

MDash

This app offers a live split-view editor for Markdown with real-time preview and syntax highlighting. It also supports Mermaid diagram rendering directly within documents, allowing for efficient text formatting and creation of visual aids.

Highlights
  • Live split-view Markdown editing
  • Real-time preview with syntax highlighting
  • Mermaid diagram rendering
  • Export to MD, TXT, or PDF
  • Auto-save functionality
  • Dark mode support
Features
Read full description

MDash is a Markdown editor that keeps your notes as plain text on your device. No lock-in, no account, no sync you did not ask for. Write on iPhone, iPad and now Mac — the full workspace on every screen. MARKDOWN, RENDERED LIVE Type plain Markdown and watch the preview update as you type: headings, lists, task checkboxes, tables, code blocks with syntax awareness, links and images. Show the text, the preview, or both side by side. MERMAID DIAGRAMS — FREE FOR EVERYONE Describe a flowchart, sequence diagram, Gantt chart, class diagram or state machine in plain text and MDash draws it instantly. Rendering is built into the app: no network, nothing leaves your device. ON MAC AND APPLE WATCH The complete MDash workspace runs on macOS — a three-column library, keyboard-first editing and the same live preview and Mermaid rendering. On Apple Watch, browse your library and read any note on your wrist. One purchase covers iPhone, iPad, Mac and Watch. YOUR LIBRARY, ORGANIZED • Pinned notes, Last 7 Days, and Trash with restore • Full-text search across every note, with jump to match • In-document find and replace with match highlighting • Attach photos to notes; files stay ordinary Markdown • Folders keep related notes together; create one right from the sidebar • Tags under the title, a Tags section in the sidebar, and search by tag • Smart folders collect notes automatically from the tags you choose • Scan documents into a note, and search the text inside photos and scans — on device, free • Import from Obsidian, Bear, Apple Notes, TextBundle or any folder of Markdown files — free • Version History keeps earlier versions of every note on device, ready to restore — free EXPORT AND SHARE • Export Markdown and plain text — free • Copy as rich text for mail and documents • PDF, HTML, Word (DOCX), ePub, RTF, JPG and TextBundle export with MDash Pro MDASH PRO — LIFETIME OR MONTHLY MDash Pro unlocks iCloud sync across your devices, export to PDF, HTML, Word, ePub and more, and watermark-free Mermaid diagrams. Choose a one-time lifetime purchase or a monthly subscription — both unlock exactly the same features. The monthly subscription renews automatically until cancelled; manage or cancel it anytime in your App Store account settings. PRIVATE BY DESIGN Notes are stored on device; sync is optional and uses your iCloud. Mermaid rendering is local. There is no tracking and no account. Questions or ideas? Leave a review or reach out through the App Store page — MDash is built by an independent developer and shaped by user feedback. Terms of Use: https://nightcodeapps.com/apps/markdown-editor/terms/ Privacy Policy: https://nightcodeapps.com/apps/markdown-editor/privacy/

About

MermaidSketch

Features
Read full description

MermaidSketch lets you draw flowcharts and system diagrams visually, then instantly converts to Mermaid syntax. Perfect for developers, designers, and product managers who think visually. FEATURES: - Draw shapes, arrows & groups on canvas - Group nodes into layers and subgraphs - AI-powered diagram generation from text - Offline Mermaid preview (no internet needed) - Export as PNG or Markdown file - Manage multiple diagram projects - Undo/Redo, Zoom/Pan, Resize shapes FREE: - Unlimited canvas & projects - Full drawing tools - Offline preview & export - 3 AI generates per day PRO ($2.99/month): - 20 AI generates per day

Screenshots

MDash4 screens
MermaidSketch4 screens

Verdict

The call

The clearest difference is update cadence: MermaidSketch at daily against MDash's every 3 days. MermaidSketch also leads on iOS requirement (13.0 vs 17.0). MDash's advantage is device support (6 vs 3). On price, ads 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

MDash ships an update every 3 days, MermaidSketch daily. The most recent releases landed on October 5, 2026 and October 7, 2026 respectively.

Scorecard3 real differences · 7 level
MDash versus MermaidSketch: the parameters behind the verdict, then further details
ParameterMDashMermaidSketch
PriceFreeFree
Rating3.7 (3 ratings) — better—
Positive reviews66.7% of reviews—
Number of ratings3 — better—
Update frequencyEvery 3 daysDaily — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, Mac, Apple TV, Apple Watch, Vision Pro — betteriPhone, iPad, iPod
Requires iOS17.013.0 — better
Further details — not scored
Size59 MB33 MB
Age rating4+17+
DeveloperArtur Gorbaczewskiduy trinh

In-app purchases

None

MDash

No in-app purchases

None

MermaidSketch

No in-app purchases

Questions

Is MDash free?
MDash is free to download, with no in-app purchases.
Is MermaidSketch free?
MermaidSketch is free to download, with no in-app purchases.
Do MDash or MermaidSketch have ads?
Neither MDash nor MermaidSketch shows ads.
Which is updated more often, MDash or MermaidSketch?
MDash ships an update every 3 days, and MermaidSketch daily. Most recently, MDash was updated on October 5, 2026 and MermaidSketch on October 7, 2026.

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