"This kit does not include the color sensor that was in the previous kit and cost more. Second, the app only allows you to build the 3 robots and do their missions. That's it. If you want to use the kit to make your own creation after that ( you know, the actual point of playing Lego), you have to download the other Boost app. Finally, Lego has drop support for the PC version and does not even offer the possibility to download it anymore, which mean our Lego summer camp and school won't be able to function since we were using PC for the children and we can't just go out and buy 20 iPads. Extremely disappointed."