Apollon - UML Modeling Editor

UML diagrams, anywhere

Free

Apollon has been rebuilt with the editor from the web: 13 diagram types, a touch-friendly canvas, offline work, modern exports, and optional sharing. Create UML and software-design diagrams with Apollon, the open-source editor for the web—now ready for iPhone and iPad. Apollon helps students, educators, software engineers, and architects turn ideas into clear, structured models. Start without an account, keep local diagrams on your device, and work offline. When you are ready, export your diagram or share it for feedback and live collaboration. What you can do: • Choose from 13 notations: Class, Object, Activity, Use Case, Communication, Component, Deployment, Petri Net, Reachability Graph, Syntax Tree, Flowchart, BPMN, and SFC. • Start with a blank canvas or a software-design pattern template. • Edit with a touch-friendly interface designed for iPhone and iPad. • Export to SVG, PNG, PDF, PPTX, or JSON. • Use light or dark appearance in portrait or landscape. • Create an optional share link; diagrams you keep local remain local. Apollon uses the same open diagram format across the web app, iPhone and iPad, VS Code, and embedded products. The project is open source and developed by TUM Applied Education Technologies.

Ratings & Reviews

  • 3.0
    out of 5
    2 Ratings

Apollon has been rebuilt around the redesigned editor used on the web. • Create 13 diagram types, including Class, Activity, BPMN, Flowchart, and more • Start from software design pattern templates • Export as SVG, PNG, PDF, PPTX, or JSON • Work locally without an account and share only when you choose • Use a refreshed, touch-friendly interface in light or dark appearance • Keep compatible diagrams from the previous Apollon iOS app when you update

Version 5.2.0

The developer, TUM Applied Education Technologies, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Collected

    The developer does not collect any data from this app.

    Privacy practices may vary, for example, based on the features you use or your age. Learn More

    Accessibility

    The developer has not yet indicated which accessibility features this app supports. Learn More

    Information

    Seller
    Technische Universitaet Muenchen (Edu)
    Size
    19.2 MB
    Category
    Developer Tools
    Compatibility
    Requires iOS 15.0 or later.
    • iPhone
      Requires iOS 15.0 or later.
    • iPad
      Requires iPadOS 15.0 or later.
    • iPod touch
      Requires iOS 15.0 or later.
    Languages
    English
    Age Rating
    4+
    Copyright
    © 2026 TUM Applied Education Technologies
  • Developer Website
  • Privacy Policy

    • More by TUM Applied Education Technologies

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