It doesn't exist apparently. No reply to 3 people. He probably Venmo'd $5 to someone and thought it was a solved problem. Not a real solution to real significant cross-border money transfers.

There are a bunch of options out there:

https://www.nerdwallet.com/blog/banking/best-ways-to-wire-mo...

And more all the time; it's a hot area for startups: https://www.wsj.com/articles/fintech-startups-seek-to-shake-...

So it's entirely plausible there's a solution that works well for him already.