Introducing Yansu
Mar 19, 2026
Most SaaS features end up not being used. You have specific habits, bottlenecks, workarounds you've been running for two years, and the one-size-fits-all product just doesn't suit you well.
The obvious fix is to use AI to build what you need. Prompt an LLM, get a custom tool. Great in theory. In practice, most people can't articulate what they need until they see it. Even when they can, writing a good prompt takes time.
So we went a step further. We built a tool that makes bespoke software for you before you even know you need it.
Introducing Yansu App, our proactive app-building agent. It runs quietly in the background on your desktop, observing how you work: navigating customer calls, copying and pasting between CRM databases, fixing a coding bug, switching between news sites every morning. It then analyzes these patterns and builds apps to handle them. No prompt required. A solution, an improved workflow, a dashboard for insights — there by the time you think to build one.
Yansu's knowledge layer is what makes this compound over time. Everything observed — behavior patterns, apps built, workflows improved — crystallizes into a reusable knowledge base that gets sharper the longer you use it. That data stays with you. It doesn't leave your machine, and it's not used to train anything.
We've proven the model with enterprise customers first. For the past year, we've been shipping integrations to legacy software companies cheaper and faster than ever, through AI-native services powered by Yansu. We accumulate the tribal knowledge that drives their business and build software around it, improving what moves their top line: platform stickiness, time-to-value, margins, pricing strategy, and addressable market.
Yansu App is the same philosophy, applied to individual workflows. A software-building agent with a deep context of how you work, proactively improving upon it.
Early access is open now. Try Yansu and find out what it builds for you.
