What is the key difference between a galvanic cell and an electrolytic cell?

1. Both cells are electrochemical cells and both transfer electrons at electrodes in an electrolyte. 2. A galvanic cell runs a spontaneous reaction and turns chemical energy into electrical energy. 3. An electrolytic cell is driven by an outside supply and forces a reaction that would not happen on its own. 4. So an electrolytic cell turns electrical energy into chemical energy instead. 5. Both kinds need electrodes and an electrolyte, so those options cannot separate them. _Source: Siyavula Physical Sciences Grade 12 (Everything Science, CC BY 4.0), Chapter 13: Electrochemical reactions_