I hired a growth hacker to accelerate our app to ~1000 users. I tried sending emails out to people to use the app, but my network just didn't fit the niche we w

I hired a growth hacker to accelerate our app to ~1000 users. I tried sending emails out to people to use the app, but my network just didn't fit the niche we were targeting. I also showed the app to people in Starbucks and wrote custom replies to people online looking for the app: they were of little help.