A physics lab. A legal desk. Soon, your own AI studio.
Bought once, yours forever, no strings back to anyone's cloud.
Physics Sandbox: free, $9 if you want Pro. Pro Se Docs: $9 when you need a document. Own what you buy — no subscriptions, ever.
Or be the first to know when Studio + Effigy land.
Your files live in someone else's cloud. Your tools stop working the day you're late on a bill. Even the AI answers you get today are metered, logged, and gone the moment your subscription lapses.
Physics Sandbox and Pro Se Docs are the proof: small, honest apps you buy once and actually own. No recurring bill standing between you and the thing you already paid for.
Chat, search, your files, your own models — one dashboard that runs on your machine and answers to you, not a vendor's roadmap. In the works for Q1 2027.
Two apps you own. One AI studio in the works.
Real-time physics simulations. Explore mechanics, gravity, collisions, and more.
AI-powered legal document generation. Create contracts without expensive attorneys.
Chat, search, your files, your own models — one dashboard, all yours. Try the live demo.
You buy a tool once, you own it. No clock running down, no login wall that appears the moment you're behind on a bill.
If it can't be tried in a browser, it isn't ready. Every app on this site you can use right now — no sales call standing between you and the thing.
The dashboard I use to build this is the same one becoming Stacklis Studio. Shipped, in flight, planned, stealth — all public. I eat the dog food and show you the kitchen.
A price exists so I can afford to keep building — not to extract the most someone will tolerate paying. No dark patterns, no forced upgrades.
No board, no VCs deciding what ships, no growth team optimizing you into upgrading. Just me, building tools I'd want to own myself.
Everything got rented out from under us — the files, the tools, even the answers you get from an AI live on someone else's meter. I'm buying pieces of that back, one honest app at a time. Own what you buy, no subscription, no catch.
Physics Sandbox: free, $9 if you want Pro. Pro Se Docs: $9 when you need a document. Stacklis Studio's in the works for Q1 2027. Own what you buy, priced to keep building, not to grow a business.
0 investors, no bundle, no funnel, no growth team — just someone building things and charging honestly for the ones that cost something to run.