The best alternatives to Hipmatic are Betafy, BetaList, and BetaTesta. If these 3 options don't work for you, we've listed a few more alternatives below.
What do you think of Hipmatic?
Haggle — A CTA buyers want to click, when they aren't ready to demo
BetaList is a community of makers and early adopters showcasing their startups and exchanging feedback. It provides an overview of upcoming internet startups.