Use cases
Where Yoob changes the product.
Not every avatar belongs on the device. These are the shapes where it does: long sessions, high engagement, or a network you can’t rely on.
Companions and characters
The users you want most are the ones who talk for an hour. At $0.03 a minute with no frame charge, a long session stays cheap, and a prepaid balance with a monthly cap keeps spend predictable. This is the single clearest fit.
Language tutoring
Daily practice means daily minutes, and a tutor that pauses to buffer breaks the illusion instantly. No round trip means no buffer, and a commute with patchy signal stops being a problem.
In-app support and onboarding
Support volume spikes when you least expect it. Spend stays predictable: you pay per conversation minute from a prepaid balance, a monthly cap stops a spike running past budget, and rendering never touches your infrastructure.
Games and NPCs
A talking character per player does not scale on rented GPUs. Every player brings their own renderer, so there is no concurrency limit and the per-minute rate is the same at one conversation or a hundred thousand.
Health, coaching and journalling
Sensitive conversations where no video leaves the device, and with your own voice provider no audio or transcript reaches Yoob. That is a compliance argument as much as a technical one.
Kiosks and field devices
A face that keeps working when the venue wifi does not. Rendering runs on the device and carries on through a dropped link for up to 10 minutes; a new session needs a connection.
Voice
Voice products
Voice agents and support lines
Duotone handles a live call that callers can interrupt, and hears whether they are calm or upset.
Narration, games and characters
Overtone performs a script with emotion, laughs and whispers written inline.
Call review and coaching
Undertone transcripts show where a conversation turned, not only what was said.
Fraud and trust
Truetone flags cloned voices on calls, in voice login and in uploads.
Where we’d tell you to use someone else
Short one-off interactions on the web, where a three-minute session never accumulates enough minutes to matter and a browser is the whole product. Anything that needs Android today. And any full-body character in an arbitrary scene: we render a face, not a world.