LiveLingo

LiveLingo is a real-time voice translation app for spoken conversation. It translates speech as the speaker talks, at roughly 1.5 seconds of latency, rather than waiting for a sentence to finish, and supports 35 languages.

Besides in-person conversation, it can place translated telephone calls over the normal phone network. The user dials an ordinary number and the person who answers hears the translated call on their own phone, without installing an app or following a link.

Other features include highlighting of key words during playback, and support for language pairs that are commonly handled poorly by machine translation.

The developer has published an open benchmark comparing it with Gemini Live, the GPT Live API and Azure across 16 language corridors, in which identical audio was scored by three independent LLM judges. The dataset is available under CC-BY at https://doi.org/10.5281/zenodo.21250032

LiveLingo runs on iOS, Android and in the browser, and is free to use with paid tiers for additional usage.