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.



10+ similar apps compared and reviewed
Whether you want more options like Mondroid or a completely different take on the same concept, our curated list of 10+ similar apps has you covered. Updated for 2026 with the latest ratings and comparisons.



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.






A powerful plain text and code editor for iPhone and iPad. Offers syntax highlighting, line numbers, find and replace, and extensive customization options for developers and writers.








Access and manage your MS SQL Server databases directly from your iOS device. This app offers a clean interface for browsing, editing, and exporting data, along with advanced features like SSH tunneling and ER diagram visualization.


This application allows users to create, visualize, modify, and validate JSON data. It offers both outline and text modes for editing, with features like syntax coloring, auto-indentation, and find/replace functionality. Premium features, including saving documents, are available via a one-time in-app purchase.


This tool enhances JSON data viewing and editing within Safari and on your device. It offers beautiful formatting, syntax highlighting, and an interactive editor for efficient JSON management.


Develop and run Node.js web applications directly on your iOS device, even offline. This app includes a full Node.js environment with NPM, a script editor, and debugging tools. It also functions as a standalone web application and offers extensive file management capabilities.


A native, cross-platform code snippet manager and developer utility for iOS development. It offers a robust code editor with extensive language support and various built-in developer tools, all while prioritizing user privacy and offline functionality. Data is securely saved locally and synced via iCloud across Mac, iPhone, and iPad.


A mobile client for managing MongoDB databases, offering efficient collection and document editing, versatile query capabilities, and secure connection options. It supports various MongoDB versions and cloud providers, with robust data export and diagnostic features.


Learn, run, and share Ruby scripts with this iOS app. Features include code autocompletion, syntax highlighting, and a built-in browser for learning materials. Customize your interface and share code easily via email or social media.