For centuries, the best designers that ever existed relied upon these prematurely antiquated tools, so don’t get smug — thinking drawing your ideas on a pad can’t help. What’s missing is an easy way to bring the casual sketch to life.

Amid a myriad of prototyping tools, POP, an iPhone app made byWoomoo, has effectively popped right into my home screen as an insanely useful way to explore user experience problems and share iPhone app concepts with others. Simply sketch out your idea, take a few pictures and then link buttons to create a functioning mock-up that can be shared across Twitter, Facebook, messages and email.

Then, press the play button in the top-right corner see what you’ve made. Pinch out to go back to editing or to share.

The app is a breeze to use, especially when compared to more complex utilities like Balsamiq. Better yet, it’s quick and your finished results can be shared.

The only downfall I’ve discovered so far is POP’s pricing structure, which is honestly unclear at the moment. The app is in its early stages, and so Woomoo has opted to limit the number of projects you can create.

For now, after downloading the app via the link below, users are able to create two projects (both of which are taken by deletable examples), but clicking on the “Plans” button on the bottom right reveals a “gift card” of 5-20 free projects. Additional plans are not available at this time, so you’ll have to make do with the space you’re given. It feels like a strange decision for the app creator to make, but after considering that all of the projects you make are hosted on the Web once they’re shared (example), it’s easy to see how expenses could grow exponential as the app spreads.

Image credit: Jules Frazier / ThinkStock