I tried a few and liked this the best, considering the price. Gradient colors are the most fun. Different styles of drawings and new ones almost every day means you will always find something to like. The best part is that you can pay once and you are done - you get everything. Other apps want monthly fees. You can see on Instagram @ColorTherapyApp the endless results you can get with the same design. Try for free gets you a good sample of what you can do. The only downside is that it is too addicting. I dont get anything else done these days