Karen – AI Companion App Rated 5.0★ on Google Play
We built Karen, an AI companion that remembers every conversation and talks back in a natural voice. It holds a perfect 5.0★ rating on Google Play and speaks 8 languages.
Client: Dark Lake Holdings
Impact
5.0★ · 94 Reviews
Platform
Android, Admin, Backend
The Challenge
Most AI chat apps forget everything between conversations. The client wanted a companion that remembers what matters to each user, talks naturally by voice and feels personal, while staying fast and affordable to run.
Our Approach
Long-Term Memory
A memory layer so conversations build on what the user shared before.
Natural Voice
A voice pipeline for real-time spoken conversations, not just text chat.
One Codebase
A Flutter app with a TypeScript backend and admin panel for users, content and operations.
Our Solution
We built the core Flutter app (onboarding, chat, voice conversations, memory, in-app purchases and subscription paywall), the admin panel and the backend services. Later updates were made by another team.
The Results
Perfect 5.0★ rating on Google Play across 94 reviews
1,000+ downloads, monetised from launch with in-app subscriptions
Available in 8 languages from a single Flutter codebase
Long-term memory: conversations pick up where users left off, even weeks later
Gallery
Technologies Used
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