NO, you don't have to. You can download for free to learn programming algorithm using built in virtual projects to enhance your Computational thinking. You only need to buy the Access Code if you want to  explore physical computing using Arduino Uno board. You can download FlowLogic 6 and start using it immediately. Go to Tutorials to learn more.

From FlowLogic 6, Select menu "Option" and then select either the 32bit or 64bit. If the installation window does not appear, Run your FlowLogic 6 as Administrator.

For now it only support  Arduino Uno R3 ATmega328P ATMEGA16U2 with Arduino USB Driver or CH340 USB Driver. More Arduino and other boards will be added soon 

Unlimited, You just need a new Access code for each board.

NO, You can email us if you have any issues. we are continously updating FlowLogic 6 and the Tutorials page regularly to serve you better.