Its free, and it does a basically decent job of basic reflections. Best for landscapes and sky/sunrise/sunsets. I have an iPhone 6+/128G. I have not had any of the reported crashes at all. Its the free version, so Im willing to put up with the ads... Its an honest part of the bargain. If you have enough free room on your device, its worth having in your pocket for "the right time". Its clearly not meant for every day. It makes basic reflections!