Papu StudioStart a project

AI-first product studio · Helsinki

Custom internal tools, shipped in weeks.

We build the ERP, back-office, or workflow your team would build if they had nights and weekends to spare for prompting. State-of-the-art AI as the apprentice. An experienced operator at the wheel.

5
products shipped on this stack
8 yrs
as COO at a B2B SaaS company
9
Finnish cities run on tools we built
1
small dog supervising the work

What is possible

A stack we have vetted in production. Everything a good dev team ships, in weeks instead of quarters.

Same toolkit on every project, so the second feature ships twice as fast as the first. We do not start with a blank canvas. We start with the parts we know hold up under real customers, then bolt on whatever your problem actually needs.

  • Authentication and user management

    Email and Google login, magic links, multi-workspace tenancy, role-based access. The plumbing your team should not have to write twice.

  • Payments and billing

    Cards, Apple Pay, MobilePay, bank transfers. Subscriptions, one-off charges, marketplaces with payouts. Money in, money out, properly accounted.

  • AI as a feature, not a chat box

    Document parsing, drafts, classifiers, autonomous agents. AI as the working layer that triggers actions, attaches context, and closes loops on its own.

  • Integrations with anything

    Google Workspace, accounting tools, PMS systems, kitchen printers, any API. Webhooks in, webhooks out. The boring glue that holds operations together.

  • Files, images, and media

    Upload, store, serve from the edge. Custom subdomains for branded delivery. PDFs, exports, user-generated images, generated reports.

  • Email, SMS, and notifications

    Transactional receipts, onboarding sequences, in-app alerts, Slack pings, SMS where it actually matters. The whole comms layer wired into the app.

  • Reporting, exports, and audit

    Internal dashboards, scheduled reports, CSV / Excel / PDF exports, full audit logs. The things finance and ops keep asking for after launch.

  • E-signatures and contracts

    Legally-binding signatures with audit trails. The same signed flow you have used at the bank, embedded in your app.

If a competent team can ship it on a modern stack, so can we. The difference is the calendar: weeks where they would quote quarters.

How we work

Three steps from your problem to a tool your team is using.

01

Intake

You fill the form or send a note. We read it the same day.

02

Scope

Short call or written exchange. You get a fixed price and a date.

03

Build

We ship in milestones. You see it running before the final invoice.

The full loop, in detail →

The honest part

Yes, you could probably build this yourself with Claude. You probably will not.

We use state-of-the-art AI. We are not hiding it. We are using it well. The same tools your team could be using are sitting open on our screens all day, every day.

What you are paying for is the operator on the other side of those tools. Eight years running a B2B SaaS company, three businesses of our own, and the calluses to know which features actually matter and which ones look great in a demo and never get used.

Most teams do not have the nights or the appetite to prompt their way to an internal ERP. We do. You get the tool. We hand you the keys.

Have a problem worth a tool?

Tell us about it. We will get back within one working day.