Custom apps
Web apps, customer portals, marketplaces, B2B platforms. Built around your process — not the other way.
→ Custom software, built for you, at a fraction of what you pay for subscriptions today.
Subscriptions grow each year. Features never shrink. Your data was never yours.
You pay for every head. Including the one that logs in once a month and clicks twice.
Vendor raises the price or stacks a new tier. Nobody asks if you wanted new features.
Your process lives on someone else's servers. So does your data. Migration always comes back.
No handovers, no 6-month projects, no fixed monthly costs.
We map your SaaS, processes and pain points in 48 hours. Real numbers, real savings.
A working proof-of-concept on the same day. Your team clicks, we iterate.
The code is yours. Your IT can take over. Zero vendor lock-in, zero monthly fees.
Drag the sliders. Numbers compute in real time.
Simplified simulation. We audit the real number in 48h.
Your monthly SaaS bill
5 000 PLN
Savings with TenfoldDevs
70%
Monthly savings
3 500PLN/ mo
Annual savings
42 000 PLN/ yr
Our share (you only pay when you save)
1 500 PLN/ mo
We don't sell AI. We sell custom software that our AI-native team + agentic engine ship faster than any agency runs an audit.
Web apps, customer portals, marketplaces, B2B platforms. Built around your process — not the other way.
CRM, ERP, operations tools, KPI dashboards. Replace Notion, Airtable, Monday — in one place.
Agents as a feature, not a product. OpenAI / Anthropic / Google models exactly where they actually help.
APIs, ERPs, CRMs, n8n, Make. Stitch old stack to new and automate what nobody wants to do by hand.
We adapt to your team. Open Mercato as the foundation where it fits. No tech religion.
CO-FOUNDER
I started TenfoldDevs because I kept watching companies pay year after year for SaaS they barely use — and nobody told them there's another way.
My team ships a working prototype in 24h, and after two weeks you own the code and the data. No subscription rent, no vendor lock-in, no fluff.
"The cheapest software is the one you own. Agencies sell hours. We sell outcomes."
We'll show you exactly what you can replace with custom software and how much you'll save per year.