Absolutely. There is no problem in coaching your client when they do not have a PRO-membership. There are a few things you or your client cannot do without the PRO-membership though:
- You can set up a nutrition plan, but the nutrition diary is non accessible for both you and your client
- You can assign PRO-exercises to your client, but they won't be able to view the video/animation
Besides that, you as a coach will be able to do everything. The clients access however will be limited, due to their basic membership.