I really like the Invisionapp.com website design, it’s also a pretty swell prototyping tool. It’s clean and sells visually that the app is solid. There’s a clear call to action and the colors used really make it consistent across the page. It has a very well thought out tag-line and there are some nice twitter avatars of some well known web designers giving testimonials on the app. Very strong.

What I like most is the sign up experience. It’s nothing that blows you away it’s just a clinic in a well done signup experience. From the main app package selection page they’ve made you aware of the “best fit” package. They also have that nice micro-copy telling you that you can signup without your credit card – that’s a super nice way to set the tone of the relationship you’re about to get into with this app/company as a user.

I really like the signup form page a lot. Showing you a hint of the app behind the form is really smart. It shows you just how close you are to using the app – even if it’s kinda faked out or whatever that’s a really nice touch. Love it!