Best gesture app of its kind for Mac or Windows. I literally would not upgrade my Mac OS without it. Saves immeasurable time and carpal tunnel syndrome to boot. Looking forward to future updates with more types of gestures, etc. ... I always breathe a heavy sigh of relief whenever it continues to get updated over time, it would be a disaster to lose this app. I use this for gestures in everything from Safari to Photoshop and it works almost flawlessly. When I want to flip an image in Photoshop I merely hold down my middle mouse button (the scroll wheel button) and gesture right... then *poof*... destroys the speed of most keyboard shortcuts while (once again) keeping carpal tunnel syndrome at bay all these years. Thank you dev for a great product!