Add "Build your own plan" plan
Add a possibility to customize your plan by selecting and deselecting addons.
For example, for the Freelancer plan, I don't need a new calendar add-on features, but I need issue tracker.
As you add/remove modules and applications - price per user changes accordingly
Thank for posting. I edited the title and description a bit. We did consider this option but delayed as it is not easy to do/test + very hard to support users where each plan can have a different subset of features.