If it is a brand-new startup, it's not worth worrying about them because you are both still so far from reaching a point where everyday users know either of you exist.
It's easy to read HN and TechCrunch everyday and become disheartened when closely related products launch, but the reality is that nobody outside Silicon Valley cares until one of their friends tells them about it.
Also, I think when you are building a startup, it is best to largely ignore tech news sites anyway. You can drive yourself crazy reading about others successes and competing products. It helps you keep your product stay original and not easily become distracted when a new feature idea presents itself that makes you go in a totally different direction before your first idea has had a chance to succeed.
It's easy to read HN and TechCrunch everyday and become disheartened when closely related products launch, but the reality is that nobody outside Silicon Valley cares until one of their friends tells them about it.