Is Flipster on iPhone?

Excuse me, I'm wondering if you could clarify something for me. I've been hearing a lot about Flipster lately, and I'm interested in using it on my iPhone. Now, I'm not sure if I'm mistaken or not, but I can't seem to find it in the App Store. So, I'm wondering, is Flipster actually available on the iPhone? If it is, could you please guide me on how to download and install it? Alternatively, if it's not available on iPhone, are there any similar apps that I could use instead? I appreciate your help in this matter.