Question Recommendations for software that helps with managing projects ?

[danezeq]

Hello!

I'm looking for software that has these features:

1. Managing a list of projects
2. Every project has an inner list of tasks which only i see
3. Every project has an inner list that can be shared with the costumer of that project
4. Shows in a simple way to the customer who's the one that needs to take action right now in order to get the task done.

any recommendations?
Thank you all