[Solved] How many computers can I install Unity FREE on? (Using the same account)

I want to install the unpaid version on 3 machines. Possible?

When you activate your copy of Unity using the “free” option, you get provided a serial number. This serial number is good for just a single machine. To have Unity Free run on three machines you simply perform activation on each machine. You’ll end up with a unique serial number on each machine.

If you have purchased add-ons for your free license, then the serial number you will receive is good for use on two machines. Note that only you as the owner of this free plus add-on serial number can use it.

Sure. You may want to check this.