No, all Canva templates sold at Design Pixie can be used in the free version of Canva. Everything you see in the design (eg. fonts, graphics) will work in free Canva. For the logo templates, if you want to download your logo with a transparent (clear) background, you will need a Canva Pro account as they don't allow you to do that in free Canva. Canva have a free trial of their Pro version, so I'd recommend making use of that to see if you like Pro!