Not very similar to the name brand.
Stila Glitter & Glow Eyeshadow in Kitten Karma is $24 for 4.5ml and ELF Liquid Glitter Eyeshadow in Flirty Birdy is $5 for 3ml. Component-wise these are very similar. Stila has a doe foot applicator and ELF has a flat doe foot. They have very similar claims - one swipe coverage, long lasting, minimal to no fall out, quick drying and no need for any primers or glue.I was really excited to try the ELF. I adore the Stila eyeshadows. They are so easy to use, you do not need a glitter glue, have no fall out, last all day and are the perfect amount of sparkle. No chunky glitter here! Just amazingness. Application-wise these are similar but not quite the same. Stila was much easier to work with. Elf had to build up because when you applied it, it would move the product around and and pick up the product where you just applied. ELF is extremely glittery and chunky. The glitter particles are much larger in size than Stila. Color-wise, I think these are very similar. It is hard to tell them apart - if it was not for ELFs chunky glitter you probably would not be able to. Both brands do dry down quickly. I got a lot of compliments while wearing the ELF, but I hated it. On ELFs webpage they describe their shadow to have minimal fall out. I do not believe this to be true. I wore this for less than an hour and when I looked in the mirror, I had glitter in my lashes and on my cheeks. Some of it was even in my hair. I had not even rubbed my eyes! The color is beautiful and it really is an intense glitter shadow. But, the longevity is nothing like Stila.When I got home to wash it off, glitter went everywhere. The next morning I still had glitter on my face. Maybe if you did use a glitter glue of some sort it would work a lot better. But, that is why I think Stila is worth the splurge with its no-fuss application