Short answers

Using Earth Resilience is free. Some real-world activities may involve optional costs. Gifts cannot be received yet.

No. An account is only needed if you want to save a registration or leave a private note.

No. You can choose a country yourself. The browser is not asked for your position, and the map does not draw homes.

No. It is level 1. Review and measurement are later steps, with people involved.

You can save the published lessons on the device. Without a network that reading is shown, not the rest of the platform. The guide and registrations need a network.

Settings has larger text, less motion and low bandwidth. Low bandwidth does not fetch photographs or the web font. The map also has a list. There is no audio or video, and so no captions. A human screen-reader review has not been done.