Replika

Replika builds a personalized AI relationship that learns your personality and communication style over time, designed for emotional support and companionship, and it's found a genuinely loyal audience among people experiencing loneliness or grief. It's also faced real regulatory scrutiny — Italy temporarily restricted it in 2023 over data and age-verification concerns — a reminder that AI companion apps sit in a genuinely unsettled space between product and something closer to a relationship, with real consequences when that goes wrong for vulnerable users.