Anki - I don't know how I'd prep for the MCAT without this. Open source with desktop and mobile clients, syncing via cloud. It's flashcarding but uses gradual intervals so you see things less often once you've retained them.
ChatGPT - I use this as a private tutor (it's great for biomedical stuff) to check my understanding and ask it to correct me if I'm wrong.
ChatGPT - I use this as a private tutor (it's great for biomedical stuff) to check my understanding and ask it to correct me if I'm wrong.