there sint much difference. The Gel nails are more see through and are a little more hardy, its still in powder form like acrylic is and you cant really tell the difference, other than that the GEL is a bit more see through and because of that a bit more pink as you can see your own colour underneath-i also think it can be filed a tiny bit thinner-acrylic can too but gel is less likely to break. only thing with gel is that you can see tiny bubbles where the gel has dried.