Replika
Replika is an AI chatbot app launched by Luka, Inc. in 2017 to provide users with personalized virtual companionship. Users can customize Replika's appearance, personality, and relationship type (such as friends, partners, or mentors) to interact with them through text, voice, or even video calls. Replika remembers users' preferences and conversation history, providing emotional support, daily conversations, emotional companionship, and other services to help users alleviate loneliness, manage stress, and improve mental health. The app operates on a freemium model, allowing paying users to unlock additional features such as enhanced emotional interaction and personalization.