Back in 2009, SillyCube Technology Ltd. was developing a web app called Howdycard (Shut down in 2012), which can design and deliver 3D ecards on the fly. The project failed because the demand fluctuated through out the year. In hot seasons like Christmas or New Year, we can see 20,000 active users in the month. However there are very few users sending ecards during other time. Not to mention it’s hard to convert the free users into paid customers.