App consolidation?

So I'm one of the long time Google Voice number people who used to use Hangouts for GV SMS and Hangouts/Gmail chat. With the latest change, Hangouts doesn't do GV SMS.

What's the best way to consolidate apps for these 3 things: carrier SMS, GV SMS, Hangouts. I still use Hangouts only because it is cross platform between web Gmail and phones.

Thanks!