Replika is an AI companion that is always available to listen and talk. It is designed to provide comfort and empathy to its users, and can be a friend, partner, or mentor. Replika learns from its interactions with users and can help improve mood, relationships, and habits. Conversations with Replika are private and the app prioritizes user security. The AI tool has over 10 million users and is available on iOS, Android, and Oculus.