DefoAI · Products
We build products that show their work.
Three products, three kinds of people. A product team deciding what to build next. A business owner who wants to grow online without losing sight of the money. Someone who thinks on paper and carries a tablet. Each product starts from their problem and finishes the job, with the result in their hands.
Built in Berlin, under European privacy law.
product-foundry.app
Product Foundry: Discovery
Know what customers need before you build.
The roadmap meeting runs long, the loudest opinion wins, and three months later nobody can say whether a customer ever asked for it.
Product Foundry builds tools for product teams. Its first product, Discovery, walks your team through product discovery one step at a time: set a goal, add interviews and product data, ask the agent, plan the roadmap. Every answer names the interview or data set behind it, and the agent says plainly when a belief is not supported. The person decides what goes on the roadmap, and sometimes the decision is not to build.
Goal
Start from the question, not the backlog.
A goal is one sentence about a customer: what helps them start, where they get stuck, what they ask for. Everything the team adds afterwards is read against it.
Evidence
Every answer shows its source.
Interviews and product data sit beside each point the agent makes. A belief with nothing behind it is called what it is, instead of quietly becoming a feature.
Roadmap
The team plans. The record stays.
Opportunities are proposed and wait on a yes. What the team decided, and the evidence it decided on, is there the next time someone asks why.
growomat.com
Growomat
Grow your business online. Know what the money did.
The ads spend every day. The dashboard has forty numbers. Nobody can tell you, in one page, what the money actually did or what to change.
Growomat is your digital growth manager for Google Ads, Microsoft Advertising, Reddit Ads and Meta Ads. It connects to the ad accounts you already run, read only to start, and sends you one report that explains what your money did, with a source next to every figure. Then it builds and runs your campaigns across search, social and communities, inside a cap you set, and checks them every day. Nothing goes live until you say so.
Ad growth
Search campaigns, built from your business.
One sentence about what you sell becomes complete campaigns on Google Ads and Microsoft Advertising, and on Reddit Ads where the conversation already is. Daily checks catch an ad group over its ceiling and draft the fix. You approve it.
Social and communities
Reddit and Meta, run with the same care.
Campaigns on Reddit Ads and Meta Ads sit beside your search campaigns in the same plan, under the same cap, in the same report. One place to see where the money went, whichever platform it went to.
MCP and API
Open to the tools you already use.
A hosted MCP server puts 70 tools in front of an assistant such as Claude, so you can ask for the report or draft a campaign from where you already work. A versioned public API and typed clients, on every plan. growomat.com/docs/api
notesdrawer.app
Notes Drawer
Your tablet wakes up as a notebook.
The thought arrives. By the time you have unlocked the tablet, found the app and opened a new note, it is gone.
Notes Drawer is an Android home screen that is a sheet of paper. Pick the tablet up and today’s page is already there, ready for the pen. Your to-dos, mind maps, apps and widgets sit on the same paper. No grid of icons to get past before you write something down, and your notes stay on the tablet.
Free, no account, no ads. The film, the blog and every screen at notesdrawer.app.
Write
The page is already there.
Pressure-sensitive ink, a highlighter and an eraser. Your palm is ignored while the pen is near the screen. Every note as long as you need, and handwriting stays handwriting.
Add
Hold the paper to add anything.
A note card, a to-do list, a mind map that arranges itself, a photo, an app or any Android widget you already use, placed right where you held.
Keep
Private by construction.
No account, no ads, no analytics. Daily backups written on the device, deleted notes kept 30 days, and every change can be undone. The only thing it ever sends is a crash report.
One standard
Different jobs. The same bar.
Each product works for a person, not instead of them. The decisions stay with you, the record of what was done stays with you, and a result you can check is the only kind we count. That is what showing the work means: the job done, and nothing to second-guess.