Here's why Creately stands out for your case:
Smart Repetition Handling: It handles decision loops (like your “Repeat the flow” logic) smoothly.
Context-Aware Suggestions: It can suggest next steps while you’re drawing.
Text-to-Diagram AI: You can literally paste the description you gave, and it will draft the initial diagram for you — perfect for speed and iteration.
Swimlane Templates: It supports swimlane activity diagrams out-of-the-box, with templates you can easily modify.
If you'd like, I can now:
Create a diagram-ready textual representation for Creately or Lucidchart's AI import,
Or even simulate how this would look visually.
Let me know what format or next step you'd prefer!