"Most voice translation tools stop working when internet connectivity is poor or unavailable, and they often require users to send their speech data to cloud servers."
That observation drove Satyam Gawali, a final-year Computer Engineering student and Flutter developer, to build CLVCA - a cross-language voice chat app designed to work where other translation tools fail.
The problem is straightforward: cloud-dependent translation requires a stable connection and routes sensitive speech data through external servers. For travelers in low-connectivity areas, professionals working across regions with unreliable infrastructure, or anyone with privacy concerns, that dependency is a real barrier. Satyam wanted to explore whether real-time cross-language communication could be made more accessible, private, and reliable by running as much of the speech processing as possible directly on the device.
On-Device by Design
CLVCA processes speech locally, reducing dependence on cloud infrastructure without sacrificing the real-time communication experience. The result is a tool that keeps working in the situations where other apps go dark - poor connectivity, no connectivity, or environments where sending voice data to a remote server simply isn't appropriate.
The app is designed for a wide range of use cases: travelers communicating across language barriers, students working in multilingual environments, professionals collaborating with international counterparts, and people in low-connectivity regions who need reliable voice translation. The common thread is a need for communication that doesn't require a perfect internet connection or trust in a cloud provider's data handling.
Satyam built CLVCA as a Flutter developer with the goal of making multilingual communication more natural. The on-device approach addresses both the technical gap - offline functionality - and the privacy gap that cloud-based tools leave open. Every conversation stays on the device rather than passing through a third-party server.
CLVCA is available now on Android via the Google Play Store.
