Ohsnap works with most cases! If your case is flat and is made of a hard material, it should stick just fine, though it may have issues sticking if your case has ridges or lots of texture. If you can easily squish your case into the palm of your hand, it is likely Ohsnap will not stick. Ohsnap works with most cases made of plastic, TPU, leather, carbon fiber, etc. but WILL NOT stick to silicone cases. Use the image below as a rough guide to which cases will stick and which won't.