I think the experience has improved a lot recently, and it's grown much more popular than Wire, so you may find your friends already on Signal rather than needi

I think the experience has improved a lot recently, and it's grown much more popular than Wire, so you may find your friends already on Signal rather than needing to convert them. For comparison, Wire for iOS has 204 ratings (3.9 stars) in the App Store, while Signal for iOS has 190,000 ratings (4.7 stars).