There are great ways to build social networks without phone numbers (look at simplex and Nostr for example), but iff you insist on using phone numbers, stop advertising as a privacy product.

More importantly, why isn't your code FOSS? How do we know your app isn't full of telemetry and other privacy/security violations? In fact... when a company refuses to FOSS, I must assume the software is full of shady shit they don't want me to see.