Visually, FROST is gorgeous thanks to Apple's Metal 2 GPU. The game consists of nothing more than glowing orbs and light particles, yet it's all beautiful. While FROST appears to take place in a 2D plane, because the flow of the particles can change, it may look a bit 3D at times when the particles appear to come out towards you. It's a nice effect that's rather peaceful and tranquil.
Frost is a premium game with a higher price at launch than many other options in the App Store, and that might cause some to be wary of the purchase. However, the intense beauty and satisfying problem solving of Frost exemplifies why we play mobile games. The game is absolutely worth the investment and I hope to see much more of Frost and more from its creators in the future.