You Own Your AI

We are building the AI that belongs to you — not to a platform.

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.

Why we exist

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.

What we believe

What we build

YOY is a desktop AI agent with three things most assistants do not have:

92.73%LoCoMo memory benchmark
280+AI models supported
170+Official MCP apps
20+Languages

How we are funded

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.

Company details

YOY AI Limited

Registered in Hong Kong SAR
Rm 819, 8/F Peninsula Centre
67 Mody Road, TST East
Kowloon, Hong Kong SAR

General enquiries

[email protected]

Support & privacy requests

[email protected] — for technical help, data access and deletion requests

Legal

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.