Redmenta (https://redmenta.com/fr) creates activity sheets from specialized chatbots (more than 150 available) by discipline, evaluation, methods, administrative help… French supported (some translation errors in the interface).

Once the chatbot has been chosen (e.g. profile of a historical figure, organization of a school trip, etc.) and after a conversation to define the plan, the activity is generated and editable. It can be shared to be carried out online.
Groups and evaluation possible.

45 MB of free storage (10 cards) that can be increased to 225 MB by various actions in the application. Deleting a card or task restores space.