The website is pretty, but I will not download. I'm also not a musician looking for a jam session, so don't listen to my feedback. Nevertheless, I would like to ask: why an app for musicians-looking-for-a-jam instead of an app for anyone-looking-for-anything-nearby with a "jam sessions" category?
Thanks for the honesty. Let's see if I can answer your question.
For the first part (nearby musicians/jams):
Jams is our attempt at finding the best solution for a specific problem/necessity. Musicians need to know specific info about other musicians before even thinking about getting together to jam that would be useless for other kinds of activities. (experience, what instruments they play, what genres, etc.)
For the second part (nearby anything):
There are already plenty of apps that let you do this. Nevertheless, we are indeed working on our take at this. Can't disclose a lot at the moment, but I'll be posting here again once its closer to launch.
As a musician looking for jam sessions I can say that I may try an app designed for jam sessions but would never try a generalized app that offered to “find nearby people for things together”
Not even if that app had a splash page at findjamsessions.com totally tailored to your jamsession needs and a special category and mode inside it called "jam sessions" with guitar pictures in the background?
I'm not involved with this project, but for services that require network effect (which this does), the narrow focus could help build the necessary threshold of members intending to do the same activity. They can always flip a switch to enable other categories later.