#1 on HackerNews; used by Yahoo, Amazon, LinkedIn & Zynga; 1.1M app sketches uploaded since Nov 2012;
POP transforms sketches into click-through prototypes in minutes.
1 Sketch your idea & take pictures
2 Add hotspots & link pictures together
3 Simulate & test it on iPhone
4 Share & get feedback
"If you can draw, you can make apps"
We don't satisfy with prototypes, we want anyone with an idea can turn it to real apps with just pen and paper!