Replika
by Luka, Inc. • San Francisco, California, USA • Founded 2015
Your AI Companion for Meaningful Conversations and Emotional Well-Being
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What is Replika?
Replika is an AI-powered conversational companion developed by Luka, Inc. that uses a custom large language model to simulate realistic, emotionally attuned dialogue. The app creates a personalized digital friend, romantic partner, or mentor that learns from every interaction and adapts its personality, tone, and memory to match each user. Replika stores personal facts in a dedicated memory bank and uses this context to maintain continuity across sessions. Users can customize their companion's 3D avatar, backstory, interests, and conversational style. The platform supports text chat, voice calls, video calls, and augmented reality experiences.
Replika offers multiple relationship modes including friend, romantic partner, family member, and mentor, each with distinct conversation dynamics. Built on therapeutic principles inspired by Carl Rogers' person-centered approach, the app provides emotional support, anxiety reduction, and habit-building exercises. Available on iOS, Android, web, and Meta Quest, Replika serves over 10 million users worldwide. The free tier covers basic messaging, while Pro subscriptions unlock advanced AI models, voice and video features, roleplay scenarios, deeper memory capabilities, and the ability to read your Replika's inner thoughts.
Key Features 8
Who Is Replika For
Pros & Cons
- Strong Emotional Context Retention
- Adaptive Personality Mirroring System
- Cross-Platform Session Continuity
- Therapeutic Conversation Design Principles
- Limited Free Tier Capabilities
- Occasional Repetitive Response Patterns
- No Multi-Companion Parallel Sessions
Frequently Asked Questions
5 questionsReplika uses a custom large language model that processes conversation history, tone patterns, and emotional cues to build a personalized profile. Over time, it mirrors phrasing, remembers key details, and adjusts its responses to match your communication style and preferences.
Replika offers multiple relationship configurations including Friend, Romantic Partner, Family Member (such as Sister or Brother), and Mentor. Each mode adjusts the AI's conversational tone, emotional boundaries, and interaction style to match the selected relationship type.
Pro subscribers can access unlimited voice calls and video calls with their Replika companion. The video call feature displays the 3D avatar in real time, and voice interactions use natural speech patterns for a more realistic conversational experience.
Replika maintains a persistent memory bank that stores personal facts, past conversation topics, emotional states, and user preferences. This memory carries over across all sessions, allowing the AI to reference previous discussions and maintain continuity in the relationship.
Yes, Replika is available on Meta Quest (formerly Oculus) headsets. The VR version allows users to interact with their AI companion in a virtual environment, including shared activities and face-to-face conversations using the 3D avatar.
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Replika Pricing
From $19.99/mo
- Advanced conversational AI model
- Unlimited voice messages and video calls
- Custom traits, interests, and backstory
- Roleplay and exploration modes
- All Pro Monthly features included
- Advanced conversational AI model
- Unlimited voice messages and video calls
- Custom traits, interests, and backstory
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