# Dexa: UML Class Diagrams — Design & Visualize UML Graphs

> Visual UML class diagram editor with PlantUML/Mermaid support for developers and students. (iPhone/iPad app by Ale Mohamad.)

- Source: https://appshunter.io/ios/app/dexa-uml-class-diagrams/id6762662634 (this page in markdown: same URL + `.md`)
- Developer: [Ale Mohamad](https://appshunter.io/developer/569018219)
- Category: Developer Tools, Education
- Price: Free
- Age rating: 4+
- Requires: iOS 26.0 · 4 MB
- Languages: Korean, Greek, Dutch, Danish, German (Germany), Russian, European Spanish, Arabic, American English, Italian and 10 more
- Released: 2026-06-11
- Data updated: 2026-09-09
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/dexa-uml-class-diagrams/id6762662634/reviews.md

## What is Dexa?

Dexa is a powerful UML class diagram editor designed for developers, students, and software architects. Build diagrams visually on an interactive canvas, or write them directly in PlantUML or Mermaid syntax.

Key Features:

- Visual drag-and-drop diagram editor with a zoomable canvas
- Full PlantUML and Mermaid import/export support
- Six relationship types: inheritance, association, aggregation, composition, dependency, and realization
- Classes, interfaces, abstract classes, and enums with properties, methods, and visibility modifiers
- Auto-layout powered by a Sugiyama hierarchical algorithm
- Export diagrams as high-resolution PNG or PDF
- Seamless iCloud sync across all your devices

Whether you're mapping out a new project's architecture, studying object-oriented design, or documenting an existing codebase, Dexa gives you the tools to create clean, professional UML class diagrams, right from your Apple devices.

## Key features

- Visual drag-and-drop editor
- PlantUML and Mermaid import/export
- Six relationship types
- Classes, interfaces, abstract classes, enums
- Auto-layout algorithm
- PNG/PDF export
- iCloud sync

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/dexa-uml-class-diagrams/id6762662634/reviews.md

### 4/5 — Pretty Good

*2026-07-27*

It’s pretty nice and helpful for project ideas. One thing I do not like is that when you reopen the application, it automatically aligns the cards in a line A-Z. I have a structure that I like and I don’t like it how the app rearranges it, can throw me off a bit.

## Frequently asked questions about Dexa

### What is Dexa?

Dexa is a powerful UML class diagram editor for developers, students, and software architects. It allows you to build diagrams visually on an interactive canvas or by writing code in PlantUML or Mermaid syntax.

### What devices does Dexa support?

Dexa is available on Mac, iPhone, iPad, and Apple Vision Pro devices, ensuring seamless diagramming across your Apple ecosystem.

### Can I export my diagrams from Dexa?

Yes, Dexa allows you to export your diagrams as high-resolution PNG or PDF files, making it easy to share or include them in documentation.

### Does Dexa have ads?

No, Dexa does not contain advertisements, providing an uninterrupted user experience for designing your UML diagrams.

### How does Dexa handle diagram layout?

Dexa features an auto-layout function powered by a Sugiyama hierarchical algorithm, which helps in organizing your diagrams efficiently.

### What relationship types are supported in Dexa?

Dexa supports six essential relationship types for UML class diagrams: inheritance, association, aggregation, composition, dependency, and realization.

### Is Dexa suitable for beginners?

Yes, Dexa is designed for a range of users, from students learning object-oriented design to experienced developers. Its visual editor and support for code syntax make it versatile.

### How often is Dexa updated?

Dexa was last updated on June 11, 2026, with version 1.0. Further updates will likely be released to introduce new features and improvements.

## Version history (last 1 release)

### 1.0 — 2026-06-11

No release notes.

## More apps by Ale Mohamad

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- [Sūji](https://appshunter.io/ios/app/suji/id1598173381)
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- [Clina](https://appshunter.io/ios/app/clina/id6474296257)

All apps by Ale Mohamad: https://appshunter.io/developer/569018219

## Related topics

[uml diagrams](https://appshunter.io/ios/topics/uml-diagrams) · [classcharts](https://appshunter.io/ios/topics/classcharts) · [diagrams notepad 3](https://appshunter.io/ios/topics/diagrams-notepad-3)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-09.*