This brush set is specially designed for sketching, especially Japanese cartoon or manga sketching, with over 20 brush sets that are well-built and tested. Well, all brush sets have been tested to ensure that they actually work, not focusing on the quantity in the brush set, but on the quality of the brush set construction. All brush sets can produce full CG images in procreate. The brush set can only be used with Application procreate, not compatible with Photoshop or other applications. You can install it immediately by saving it to iCloud and then double tapping on the brush set, it will install the brush set into your device.