Seoul-based Riiid, which uses AI to offer personalized study plans to students in its test prep app Santa, raises $41.8M, bringing its total raised to $70.2M (Kyle Wiggers/VentureBeat)

Kyle Wiggers / VentureBeat:
Seoul-based Riiid, which uses AI to offer personalized study plans to students in its test prep app Santa, raises $41.8M, bringing its total raised to $70.2M  —  Riiid, a Seoul, South Korea-based startup developing AI test prep solutions, today closed a $41.8 million pre-series D financing round …