Mindmapping

There are heaps of mind mapping apps and websites. Questions to ask before choosing one

Are they free, or do they just let you create and save a couple of mind maps

Do they allow collaboration?

Do they integrate with other applications, such as Gooogle Drive or do they require additional usernames and passwords.

As of May 2020. I couldn't find any software that met all the criteria. Mindmeister allows collaboration for free, but allows you to create just 3 mind maps.

Mindmup has the advantage of costing 100 USD per organisation, which is cheaper than many of the alternatives. The only downside is that it doesn't allow for any colours except black and blue, so it is less pretty than some other apps. On e plus is the ability to link to Google docs and to add additional notes.