Although both involve inviting friends, these two features have different goals and rules:
BetFriends: This is a social feature. It is used to view and copy your friends' bets in real-time. Adding friends on BetFriends does not grant bonuses or free bets.
Refer a Friend (Bónus Amigo): This is a reward program. It is used to earn Free Bets by inviting new users to register and deposit at Betano.