First econ lesson: Don't pay $3.99/m for study material that has never been confirmed to be useful. There's plenty of free resources, right now, that are much much better.
This looks like a pure money grab, vibe-coded in the shortest possible time with, likely, vibe-generated study material.
This looks like a pure money grab, vibe-coded in the shortest possible time with, likely, vibe-generated study material.