A lot or a little?
Parents need to know that NASA NeMO-Net is an educational game for all ages that uses the classification work of the game to improve NASA's neural network that monitors the health of coral reefs around the world. Kids do not have to share any personal information to play. They're assigned a random username, and kids can reroll if they want to try a different name. They do have to complete a tutorial with 90 percent accuracy to be able to proceed into the game, so they need to have pretty strong finger coordination to color the coral within the lines and differentiate different ocean forms. Read the developer's privacy policy for details on how your (or your kids') information is collected, used, and shared and any choices you may have in the matter, and note that privacy policies and terms of service frequently change.