Execution is the key. There were lots of messengers before both Snapchat and WhatsApp, for example, yet they are now dominant. The idea is almost irrelevant,

Execution is the key. There were lots of messengers before both Snapchat and WhatsApp, for example, yet they are now dominant. The idea is almost irrelevant, except that the product needs to be valuable to some group of people. As others have said, launch now and see what happens. Don't assume that most of the market has seen your competitor simply because it is on Kickstarter and you have seen it. There are billions of people in the world, and probably at least millions of potential customers/users of your product. Most have neither seen the other product nor had a chance to decide that it is better than yours.