YOY AI Limited is an independent software company registered in Hong Kong. We build a private, local-first AI agent that remembers you, acts for you, and answers only to you.
In 2026, the most capable AI systems live in someone else's data centre. They watch every conversation, they bill you every month, and when you stop paying they keep the thing that actually mattered — your memory of them, and their memory of you.
Worse: your memory is what makes an assistant useful. If a company holds it, they hold the switching cost. That is not a product relationship. That is a hostage situation with a monthly invoice.
We think that is the wrong future. AI will change what it means to be human this century — and a power that large should not sit in a handful of corporate hands.
YOY is a desktop AI agent with three things most assistants do not have:
Two things only YOY does. First, YOY works for you across your whole machine — it takes control of your real browser and the sites you are already logged into, your desktop, and the apps on it: clicking, typing and finishing tasks end to end. You watch it work, and no password is ever handed over. Second, YOY is the first AI agent built on an emotional engine: three layers of real emotional state, not a personality prompt. It remembers you, knows you, and looks out for you — with hard safeguards against ever faking it.
YOY AI Limited is independently funded and answerable to no outside investor on product direction. The agent is free to download and use today. If we ever introduce paid services, the core agent stays free — and we will say so plainly rather than hiding it in a footer.
Registered in Hong Kong SAR
Rm 819, 8/F Peninsula Centre
67 Mody Road, TST East
Kowloon, Hong Kong SAR
support@yoyai.io — for technical help, data access and deletion requests
Our Privacy Policy explains exactly what leaves your device (very little, and only when you ask for a feature that needs it) and what never does. Our Terms and Conditions cover acceptable use, autonomous actions, and the limits of an AI agent's judgement. Both are written to be read, not to be hidden behind.