I am planning a project with a customer that will span across one year.
So far, I've created a simple Gantt chart in Excel where I added timespans for tasks with shapes or text fields (see picture).
I uploaded the document to a cloud so I could work on it with my client simultaneously. Unfortunately, when oploaded, the document is opened through Excel Online, which has far fewer functions. For example, it is not possible to insert text fields there. I would have loved Excel to work as it is easy to handle and free.
Now, I am looking for a Gantt chart tool that allows me to collaborate with my costumors without them having to create an account. They sould be able to add their own tasks, timespans and comments. The application should also be easy to understand.
I've looked at Lucidchart, but it seems to work on it, an account is necessary.
Thanks for your help!