Lingua is a real-time AI voice translator and personal assistant for iPhone. Speak naturally and hear the translation in ~2 seconds — two-way, hands-free, across 14 languages in any pair. It also includes a messenger with live-translated voice and video calls, an AI memory that remembers everything you tell it, a discreet voice prompter, document translation, and a fully offline on-device mode. Free to start.

Hi Product Hunt! 👋 I'm Nikolay, a solo developer. I built Lingua because I moved to an English-speaking country and needed to hold real conversations — at the doctor, at the bank, on the phone — not just translate phrases. Every app I tried made me pass the phone back and forth and wait. Lingua just listens and interprets both ways in real time, hands-free: you speak your language, the other person hears theirs about 2 seconds later. Under the hood it streams audio to realtime speech-to-speech neural networks over WebSockets. Along the way it grew into more: • A messenger with live-translated voice & video calls — each side hears their own language • An AI memory that remembers anything you tell it • A discreet voice prompter for interviews and meetings • A fully offline on-device mode for flights and roaming It's free to start. I'd love your feedback — especially which language pairs you'd want next. I'll be here all day answering questions!

The two-second voice translation feels genuinely snappy, not laggy like other apps I've tried. The AI memory part is a nice touch too — finally something that actually remembers context between sessions.

Lingua

Real-time AI voice interpreter in your pocket

Real-time AI voice interpreter in your pocket