There's also a Texas GMRS Network channel on Zello. That one is a little more particular on how you join the group. Those repeaters are mostly around Houston and Dallas. There is a GMRS repeater where I live. It covers the entire county. However, there isn't a lot of traffic on it and it's not on any network. I use Zello to reach other GMRS groups for the sake of conversation. As a newly licensed Amateur operator, I don't see too much difference using Zello rather than Echolink, Peanut, Dstar, DMR, YSF, or even Wires-X. Particularly in the GMRS and Ham channels of which I'm a member, a license is needed. I've been playing with Echolink, which I find a little wonky. Zello offers a more stable app and smoother experience.