Stay in the conversation
Talk to Yuki in a voice-first loop designed around natural pauses, repair, and momentum.
Voice-first Japanese immersion
Speak Japanese before your brain can rehearse it.
Renbi gives intermediate immersion learners a calm voice partner, a persistent character, and post-conversation feedback that keeps the flow intact.
Free 10-minute trial — no card required.
Understand native content.
Stop freezing at the first reply.
Review feedback after the conversation.
Built for the plateau
The missing bridge between input and output.
Most language tools are built for beginners. Renbi is built for the gap immersion learners actually hit: the one between following a TV show and ordering coffee without rehearsing the sentence three times first.
See it
A look inside Renbi.
The product, not just the pitch — these are screens from the app.
01
Talk to Yuki in real time.
Push to speak, hear her back in seconds, with the transcript building on screen as you go.
02
Feedback after the call.
Corrections, more natural phrasings, and patterns you missed — delivered once you're done, never mid-flow.
03
Every session is saved.
Reopen any conversation, listen back, and build on the phrases you've already used.
Feedback waits its turn
Corrections arrive after the session, so your attention stays on meaning while you speak.
Practice compounds
A persistent character and transcript history turn each call into material for the next one.
Stay in the loop.
Get occasional updates on new conversation topics and product improvements. One email at most per month.