Comparison

Code App vs MermaidEditor

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

Head to head
About

Code App

This app offers a desktop-class code editing experience on iPadOS. It includes built-in runtimes for popular languages like Node.js, Python, and Java, along with advanced features such as autocompletion and Git integration.

Highlights
  • Desktop-class code editor
  • Built-in Node.js, Python, C, C++, PHP, Java runtimes
  • Autocompletion and language features
  • Local file system support
  • SSH/FTP remote connection
  • Embedded terminal
  • Git version control
Features
Read full description

Code App is a MIT-licensed desktop-class code editor for iPadOS with built-in Node.js, Python, C, C++, PHP and Java runtime. We built it because there is nothing else on the App Store provides all these features in one app: * A robust, high-performance text editor (Monaco Editor from Visual Studio Code) * Autocomplete, static code analysis and other language features for Python & Java * First class local file system support * Extensive local language support * SSH / FTP remote connection support (Files and terminal) * Embedded emulated terminal * Git Version Control * Package manager support (pip and npm) * Markdown, themes, server-side snippet execution and more Read Code App's documentation: code.thebaselab.com See the project's source code, roadmap, discussion on GitHub: github.com/thebaselab/codeapp Send us an email: support@thebaselab.com Privacy Policy: thebaselab.com/privacypolicies Terms of Use (EULA): www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

MermaidEditor

Create and edit diagrams and charts using mermaid-js syntax with real-time preview. Export your creations as PNG or SVG files and share them across all your Apple devices.

Highlights
  • Mermaid-js syntax highlighting
  • Code completion
  • Instant preview
  • Export to PNG/SVG
  • Cross-device editing
  • QuickLook preview extension
Features
Read full description

MermaidEditor is a diagram and chart editor, powered by mermaid-js. And MermaidEditor supports iPhone, iPad and Mac, with one app you can edit diagram everywhere on any device. MermaidEditor supports mermaid-js syntax highlighting and code completion, so it can help writing diagram and chart clearly, easily and quickly. You can also easily export charts as PNG images or SVG files from the editor, or share image to other people with system actions. √ All Platforms - Both Mobile and Desktop platforms supported, you can edit diagram documents on iPhone, iPad or Mac - Document browser based app, easily edit files on device and sync document between devices - Multiple windows ready, it makes the editor more powerful on iPadOS - Keyboard shortcuts ready on iPadOS with keyboard connected √ Powerful Editor - Syntax Highlighting for mermaid-js grammar - Auto Completion in editor helps typing keywords quickly - Code Snippets likes parallel block in sequence diagram makes life easier - Instant Parsing Error indicator for locating syntax error √ Instant Preview - Auto Generated Preview when typing in editor - Zoom and Pan to move preview for checking diagram's detail - With Scroll wheel it can be easily zoom diagram on macOS √ Integrated Extensions - Thumbnail support, every .mmd file will has its own thumbnail when saving file - QuickLook Preview extension helps you preview mermaid document in Files app on iPhone or iPad and Finder on macOS √ Sharing - Save diagram document as its source with .mmd extension - Export diagram to PNG image or SVG file with one click For mermaid-js grammar, please visit https://mermaid-js.github.io/mermaid/ for documentation.

Screenshots

Code App2 screens
MermaidEditor3 screens

Verdict

The call

The clearest difference is review sentiment: Code App at 64% against MermaidEditor's 14%. Code App also leads on rating (4.0 vs 2.3) and ratings volume (301 vs 10). MermaidEditor's advantage is price ($3.99 vs $6.99) and device support (4 vs 2). On update cadence, 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

Code App costs $6.99 and MermaidEditor $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Code App holds the better App Store score, 4.0 against 2.3. That said, the two scores are not equally well evidenced: Code App has 301 ratings behind it against 10, so its average is the more settled of the two. Written reviews point the same way: 64% of Code App's written reviews are positive against 14% of MermaidEditor's.

UpkeepUpdate frequency

Code App ships an update monthly, MermaidEditor every 3 weeks. The most recent releases landed on September 22, 2026 and September 21, 2026 respectively.

Scorecard8 real differences · 3 level
Code App versus MermaidEditor: the parameters behind the verdict, then further details
ParameterCode AppMermaidEditor
Price$6.99$3.99 — better
Rating4.0 (301 ratings) — better2.3 (10 ratings)
Positive reviews63.9% of reviews — better13.8% of reviews
Number of ratings301 — better10
Update frequencyMonthlyEvery 3 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterPaid
Best chart rank#5 — better#112
DevicesiPhone, iPadiPhone, iPad, iPod, Mac — better
Requires iOS16.014.0 — better
Further details — not scored
Size963 MB125 MB
Age rating4+4+
Developerthebaselab Ltd基伟 徐

Customer experience

Code App

All ratings301 ratings
Positive73.4%
Neutral8.3%
Negative18.3%
Written reviews349 reviews
Positive63.9%
Neutral12.3%
Negative23.8%

MermaidEditor

All ratings10 ratings
Positive30.0%
Neutral0.0%
Negative70.0%
Written reviews29 reviews
Positive13.8%
Neutral13.8%
Negative72.4%

In-app purchases

None

Code App

No in-app purchases

None

MermaidEditor

No in-app purchases

Questions

Is Code App free?
Code App costs $6.99, with no in-app purchases.
Is MermaidEditor free?
MermaidEditor costs $3.99, with no in-app purchases.
Which has better reviews, Code App or MermaidEditor?
Code App is rated higher. Code App averages 4.0 out of 5 from 301 ratings, while MermaidEditor averages 2.3 from 10 ratings.
Do Code App or MermaidEditor have ads?
Neither Code App nor MermaidEditor shows ads.
Which is updated more often, Code App or MermaidEditor?
Code App ships an update monthly, and MermaidEditor every 3 weeks. Most recently, Code App was updated on September 22, 2026 and MermaidEditor on September 21, 2026.
Which is more popular, Code App or MermaidEditor?
Code App currently peaks at #5 in the App Store charts, and MermaidEditor at #112. Chart position reflects recent download velocity rather than total install base.

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