Comparison

MarkChart vs Flitz Shell

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

Head to head
About

MarkChart

This app allows you to easily create and preview diagrams using a Markdown-inspired text syntax. It offers templates for various diagram types and supports automatic updates when used with external editors. Export your creations to common image formats.

Highlights
  • Mermaid diagram editing
  • Real-time preview
  • Built-in templates
  • Automatic updates
  • Export to PDF, PNG, SVG
  • Syntax highlighting
  • Dark Mode support
Features
Read full description

Create beautiful Mermaid diagrams at the speed of thought. MarkChart gives you a focused editor, live preview, visual canvas, built-in templates, and polished exports in a native iPhone and iPad app. Mermaid is a Markdown-inspired syntax for defining diagrams with text. Use MarkChart to create flowcharts, sequence diagrams, state diagrams, class diagrams, entity relationship diagrams, Gantt charts, timelines, mind maps, Venn diagrams, pie charts, requirement diagrams, Git graphs, user journeys, and more. Start with a template, edit the Mermaid source with syntax highlighting, refine your diagram visually on the interactive canvas, then share it as PDF, PNG, or SVG. CREATE BEAUTIFUL DIAGRAMS Turn Mermaid text into polished diagrams in a focused iPhone and iPad app. EDIT MERMAID DIAGRAMS Create and edit your Mermaid diagrams directly in MarkChart. THEMES AND SYNTAX HIGHLIGHTING Choose polished themes and understand your diagram source with syntax highlighting. VISUAL EDITING Edit diagrams visually with the interactive canvas. TEMPLATES Instantly create sequence diagrams, state diagrams, flowcharts and more. DIAGRAM TYPES Create flowcharts, sequence diagrams, state diagrams, Venn diagrams, mind maps, timelines, Gantt charts, Git graphs, class diagrams, entity relationship diagrams, user journeys, pie charts, Sankey diagrams, XY charts, and more. QUICK LOOK Preview your .mmd and .mermaid files right from the Files app. EXPORT Easily export your diagrams to PDF, PNG, and SVG formats. SHORTCUTS Create automations with the Shortcuts app. FITS RIGHT AT HOME MarkChart is optimized for iOS and iPadOS, with Dark Mode support. MARKCHART PRO MarkChart Pro is an optional one-time universal purchase for iOS, iPadOS, and macOS. Privacy Policy: https://markchart.app/privacypolicy/ Terms of use: https://markchart.app/terms/ If you have any questions or ideas, please reach out at support@markchart.app

About

Flitz Shell

Read full description

Flitz Shell lets Flutter developers share a work-in-progress build with their team and run it on a real device in seconds. You're in the middle of building a Flutter app and want a teammate to look at it before it's finished. Instead of a screen recording or rebuilding on their machine, share a link to the current build. Your teammate opens it in Flitz Shell and sees it running on their own device — the real app, with real gestures and real performance. WHAT YOUR TEAM CAN DO • A designer checks that an animation or transition feels right on a physical device. • A product owner walks through a new form or flow and gives feedback. • A QA engineer reproduces a bug on their exact device. • Another developer reviews your branch without pulling and building it. HOW IT WORKS • Build your Flutter app and serve the current build behind a link. • Share the link — it doubles as a QR code. • A teammate scans it with Flitz Shell. • Your in-progress app launches and runs at full native speed on their device. WHY TEAMS USE IT • Faster feedback — a teammate sees your change on a real device in seconds. • Real hardware — gestures, scrolling, fonts, and performance a simulator or a video can't show. • Stay in flow — show someone a change without interrupting your own work. • Clear diagnostics — if a build isn't compatible, Flitz Shell tells you exactly why. WHAT YOU NEED Flitz Shell is for Flutter developers and their teammates. The developer builds the app; anyone on the team opens a shared build on their device to review it during development. Flitz Shell is for reviewing your team's own work-in-progress apps during development. It is not an app store and does not deliver finished apps to end users. Learn more at https://flitz.dev

Screenshots

MarkChart4 screens
Flitz Shell4 screens

Verdict

The call

The clearest difference is in-app purchases: Flitz Shell at none against MarkChart's 1. Flitz Shell also leads on update cadence (daily vs every 3 weeks) and iOS requirement (16.0 vs 18.2). On price, ads 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. MarkChart sells 1 one-off in-app purchase. Flitz Shell asks for nothing beyond the download.

UpkeepUpdate frequency

MarkChart ships an update every 3 weeks, Flitz Shell daily. The most recent releases landed on November 12, 2026 and November 10, 2026 respectively.

Scorecard3 real differences · 7 level
MarkChart versus Flitz Shell: the parameters behind the verdict, then further details
ParameterMarkChartFlitz Shell
PriceFreeFree
Rating4.0 (14 ratings) — better—
Positive reviews72.7% of reviews—
Number of ratings14 — better—
Update frequencyEvery 3 weeksDaily — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, Mac — betteriPhone, iPad
Requires iOS18.216.0 — better
Further details — not scored
Size56 MB69 MB
Age rating4+17+
DeveloperAlexandre ColucciLeanCode

In-app purchases

1 purchases

MarkChart

One-time1
  • MarkChart Pro$12.99
None

Flitz Shell

No in-app purchases

Questions

Is MarkChart free?
MarkChart is free to download, with in-app purchases available.
Is Flitz Shell free?
Flitz Shell is free to download, with no in-app purchases.
Do MarkChart or Flitz Shell have ads?
Neither MarkChart nor Flitz Shell shows ads.
Which is updated more often, MarkChart or Flitz Shell?
MarkChart ships an update every 3 weeks, and Flitz Shell daily. Most recently, MarkChart was updated on November 12, 2026 and Flitz Shell on November 10, 2026.

Other comparisons