You can’t make a normal juice with any kinds of blender. If you want to achieve all-purpose work of the kitchen system, buy combo blender-juicer. But with some Nutribullet models you can grind the fruit up to the liquid condition. So, in some ways you can get juice with the Nutribullet, but you can’t store it long.
If you want to consume the vitamin liquid right after you make it, try preparing smoothies with great recipes in the books of Nutribullet producer. There are lots of healthy ideas and interesting substitutions to your everyday unhealthy options. Watch the video of how you can make real apple juice on the blender: