Apollon iOS

A UML modeling editor application for iOS written in Swift and SwiftUI. The main functionality is imported from the Apollon-iOS-Module SPM package.

Main Features

Easy to use editor

The user interface of Apollon iOS is simple to use.

  • Select the diagram type you want to draw or choose to import a file.
  • Adding an element is as easy as choosing the desired element from the elements menu by clicking the + button at the bottom of the screen.
  • Drawing a connection between elements is done by selecting one element and dragging a path to another.
  • Edit the text of any element by selecting it and clicking the menu button. An easy-to-use menu will allow you to do so.
  • Elements can be moved and resized by holding down the move or resize button on the selected element.
  • Supports dark/light themes for the editor.
  • Offline Mode: Diagrams are saved locally on your device with SwiftData.

Apollon iOS features

Import and Export

Apollon iOS allows importing JSON files for diagrams created on Apollon Standalone. Diagrams created and edited on the Apollon iOS application can also be exported to JSON, allowing diagrams to be used between both applications.

UML diagrams

Currently, Apollon iOS supports creating three different UML diagrams, with more types to be added in the future.

The list of UML diagrams includes:

  • Class Diagram
  • Object Diagram
  • Use Case Diagram


Diagrams Editor Export


  1. Clone the repository
git clone https://github.com/ls1intum/apollon-ios.git
  1. Open the project in Xcode
  2. Compile and run the application in your simulator


View Github