Favorite tools for planning Flows

I got some rather complicated lighting, timer and motion based flows in some rooms, and I’m planning on complicating it some more. I would love to find a flow diagram service that also have logical AND, OR variable testing and so on. Are there any of those? What’s your favorite tool for flow planning?

Personally I’ve started playing with Creately for flow charts.



Is there a (complex) example with this regarding the Homey flow. It really will be helpfull. Doesn’t matter what the flow does more about the setup.