Yes, welltested's free plan is for our community users for their personal projects, non proprietary work etc with an agreement to share data for improving our models. This is a symbiotic relationship allows everyone to build welltested apps while benefiting other users from their contributions.
When should one not use a free plan?
If you plan to use welltested for any work related projects, productions apps, etc, we recommend going for a paid plan to keep your codebase completely private.