Drawing Apps is a free iPhone application developed by Gang Ji, designed for digital artists. The app is packed with a range of features that make it one of the most advanced painting engines on tablets. With over 40 natural brush presets, brushes interact realistically with paper textures, and the app allows you to create stunning images easily.

The app's interface is simple and organized, with workflows for painting, sketching, and blending. You can also clone a photo into a painting or edit your images with various tools such as color adjustment, crop, filter, and liquify. Moreover, you can move your favorite tools to the top bar for quicker access.

Drawing Apps also offers advanced features such as transforming multiple layers simultaneously, creating seamless patterns with the Pattern tool, and gradient and pattern fill. You can import images, rotate and flip the canvas, and export your images as JPEG or PNG.

The app also offers a premium subscription that includes weekly, monthly, and yearly options. The subscription provides additional features and tools, such as more brushes and layers.

Overall, Drawing Apps is a powerful tool for digital artists who want to create stunning images on their iPhones.