I knew what it was instantly from the name, so I'd disagree. It would be an oddly cheerful name for something that dealt with funeral wakes, so I don't think many people are likely to jump to that as their first conclusion.

I think that's really just you. That is a very uncommon usage of the word "wake" for most people, and would be especially odd in the name of an app called "WakeMate."

Someone might think it was an app for stalkers to better follow in your wake.