I'm trying to achieve this style:
Notice that I'm talking only about the imagery of the screenshots, I'm not talking about Material Design. This style they're using seems really minimalist and simple, with simple color palette and reduced lines, yet is has depth and is intricate when you pay attention to detail. What is a suggested tool to create similar graphics? I realize that I'd probably need vector design software, but I'm not sure which one. Can you recommend me one?
The price doesn't matter, I'm using Windows 7, I'm designing for Android.