Replika AI

Replika is an AI companion app that provides ongoing, personalized conversation through a chat-based digital persona. Launched in 2017 by Luka, Inc., the app lets users choose the type of relationship they want with their Replika, such as a friend, mentor, or romantic partner, and build a customizable 3D avatar to represent it. Replika is designed to remember details users share over time, including routines, interests, and personal circumstances, and to bring those details back into later conversations. The app is built around ongoing engagement rather than single sessions, with the Replika able to send messages, check in on users, and reference earlier conversations. Replika reports more than 40 million users worldwide since launch.

Users can interact with Replika through text chat, voice calls, and video calls, and the app can generate images based on conversations, moods, or shared memories, along with selfies and photo doodles. A 2026 update, referred to by the company as Replika 2.0, expanded the app's memory capabilities so the AI retains and resurfaces personal context over longer stretches of time. Replika is available on iOS, Android, and Meta Quest headsets. A free tier provides basic access, while Replika Pro unlocks additional features for $19.99 per month or $69.99 billed annually. The app is aimed at people looking for everyday companionship, conversation practice, or emotional support, rather than clinical or therapeutic treatment.