How do you know if someone is using their actual phone number, or a phone number app? What app or software do you use to detect this? Do you care if someone does? Many providers use number apps...and many hobbyists do.

But some providers have decided men aren't allowed to? A burner phone from target doesn't make the guy any safer for a girl to see.

Must be a secret...phmmmt

I simply don't care, not even a little bit.

if it's a cell phone #, landline,  
some kind of messenger,  WhatsApp, thru public or private Wi-Fi with or without VPN.  

Your mom never told ME that.   Lol

Ladies are now rejecting clients who use VOIP apps or sites. Are you using one? PM me if you want a site that checks, it’s free. Or search google eventually you’ll find one.

Im the master of rejection.

Its not free but its pretty ccheap per lookup.  Theyre basically the industry standard for looking up/verifying phone numbers

When potential client questions my screening for him because I use a G number, I just point to my reviews, long standing social media presence, blah blah blah. And many times such questions end up feeling like a projection since my screening of him ends with a thumbs down decision.