If anybody is interested in beta app testing, I’m happy to invite you to the BeWelcome.org iOS app!
Currently it’s just a PWA, but we’re trying to keep it simple so it can get onto the App Store.
I was a big fan of CouchSurfing before they started charging a monthly fee, which is a similar gripe I have with Servas. I met my girlfriend at the CS meet up in Kaohsiung, and although I’m no longer able to help, BeWelcome has several ways to volunteer.