Problem How It Works Services
Services Web Applications Excel → Application Automation Websites Social Media Video Production Chatbot AI Digital Twin Virtual Staging For Developers NEW
Portfolio Pakiety SMB Case Studies Blog Book a Call
MVP in 4-6 Weeks

Your Application,
Not Your Problem

From idea to working product. We build MVPs, PWAs, dashboards and SaaS
on a stack that scales: Next.js + Supabase + Vercel.

4-6
Weeks to MVP
Next.js
Frontend
Supabase
Backend + DB
Vercel
Hosting Edge
See Pricing ↓

What We Build

We do not do "everything". We specialise in specific kinds of applications.

MVP / Prototype

Validate your idea in 4-6 weeks. Core features, real users, real data. Not a wireframe — a working product.

PWA (Progressive Web App)

One app — phone, tablet, desktop. Offline mode, push notifications, install prompt.

Dashboard / Panel

Admin panels, KPI dashboards, CRMs. Real-time data, role-based access.

API Integrations

We connect systems: Stripe, Meta, Google, CRM, ERP, custom APIs. Webhooks, sync, automation.

AI Features

LLM chatbots, content generation, data analysis, recommendation engines. GPT-4, Gemini, Claude.

SaaS / Platform

Multi-tenant, Stripe billing, user management, onboarding. From zero to recurring revenue.

Transformacja

Before and After

See how we turn messy processes into professional tools.

Excel vs Web App — Before and After

Before: Excel + Manual Work

  • • Data scattered across 5 different spreadsheets — nobody knows which one is current
  • • Copy-paste between sheets — errors on every transfer
  • • No access control — everyone sees everything
  • • Reports created manually every Monday — 3 hours of work
  • • Zero automation — email notifications handled manually
Syntelligence

After: Your Web App

  • Single source of truth — real-time dashboard with always up-to-date data
  • Automatic import — API sync, zero copy-paste
  • Role-based access — admins see everything, users only their own data
  • Auto reports — generated every Monday at 8:00, zero manual work
  • Webhooks + email — automated notifications in seconds

Result: Clients save an average of 12 hours per week after moving from spreadsheets to a custom app. Errors drop by 95%.

Nasze Realizacje

This Is What

Not mockups — real production applications serving users every day.

Dashboard & Panel Administracyjny

Dashboard & Panel Administracyjny

Real-time KPI, wykresy, tabele danych. Role-based access, filtry, eksport do CSV.

Next.js Supabase Recharts
PWA Aplikacja Mobilna

PWA — Jak Natywna Aplikacja

Install from the browser, push notifications, offline mode. One codebase, every device.

PWA Service Worker Push API
4+
Systemów w Produkcji
99.9%
Uptime
1000+
Users Daily
0
Data Breaches

Application Pricing

Pricing depends on complexity. Below are price ranges — exact quote after a call.

Start

MVP / Prototype

Idea validation, core features

from 18 900 PLN
net, one-time · 4-6 wks
  • 3-5 core screens
  • Auth (login, register, reset)
  • Database + API
  • 1 external integration
  • Deploy on Vercel + domain
  • 1 round of revisions
Let's Talk →
Most Chosen
Product

PWA

Full app — mobile, tablet, desktop

from 24 900 PLN
net, one-time · 6-8 wks
  • Everything from MVP
  • 5-10 screens
  • PWA (install, offline, push)
  • Responsive — mobile-first design
  • Up to 3 integrations (Stripe, Meta, Google...)
  • Role-based access (admin, user, viewer)
  • 1 runda poprawek
Let's Talk →
Enterprise

Dashboard / SaaS

Panel, platform, multi-tenant

from 29 900 PLN
net, one-time · 8-12 wks
  • Everything from PWA
  • 10+ screens
  • Multi-tenant architecture
  • Stripe billing (subscriptions, invoices)
  • Real-time updates (Supabase Realtime)
  • Advanced analytics + reporting
  • Custom onboarding flow
Let's Talk →
API Integration
Stripe, Meta, Google, CRM, ERP...
od 4 900 PLN
AI Feature (Chatbot / Gen)
LLM chatbot, content generation, analysis
od 12 900 PLN
Development Retainer
Continuous development, new features, bug fixes
od 2 490 PLN/mo
Hosting + Monitoring
Vercel, Supabase, uptime monitoring, backups
od 490 PLN/mies

Our Stack

What We DON'T Use

  • • WordPress / PHP — slow, vulnerable to attacks
  • • jQuery — 2010 technology
  • • Shared hosting — slow, unscalable
  • • Bubble / NoCode — ceiling at 10 users
  • • Freelancers from Fiverr/Upwork — no ownership

Syntelligence Stack

  • Next.js 15 — React, SSR, App Router
  • Supabase — PostgreSQL, Auth, Realtime, Storage
  • Vercel — Edge hosting, auto-scaling, CI/CD
  • TypeScript — zero runtime errors
  • Stripe — payments, subscriptions, invoicing

Dlaczego ten stack? — we run it in production. Our own platform (CRM, Social Planner, Analytics) runs on the same stack. We do not experiment on your project.

5.0 na Google

What They Say Nasi Klienci

Prawdziwe opinie z Google.

A
Anna Kovalchuk
Google

Paweł to jedna z tych osób, z którymi po pierwszej rozmowie wiesz, że trafiasz na kogoś, kto naprawdę ogarnia temat. Bez lania wody, tylko konkret, co działa.

J
Jesper Melin
Google

Can't say enough good things. Explained what I needed, Paweł came back with something even better than I imagined. Best money I've spent on my business this year, hands down.

A
Adrian Dwornicki
Google

Miałem przyjemność współpracować z Pawłem przy realizacji projektu audiowizualnego i z pełnym przekonaniem mogę go polecić każdemu, kto szuka profesjonalisty.

How We Work

1

Discovery (Week 1)

Business, users, problems discussion. We define scope, features, timeline. Quote in 48h.

2

Design + Architecture (Week 2)

UI mockups, database schema, API plan. You get Figma for approval before coding.

3

Development (Weeks 3-5)

Weekly sprints. Demo every week — you see progress live. Staging available 24/7.

4

Launch + Handoff (Week 6)

1 round of revisions, production deploy, documentation. Optionally: retainer for further development.

Frequently Asked Questions

How long does it take to build an MVP? +
4-6 weeks from signing. That assumes the scope is settled, and you get a weekly demo. More complex projects (PWA, SaaS): 6-12 weeks.
Can I expand the app after launch? +
Tak — oferujemy Development Retainer (from 2,490 PLN/month). New features, bug fixes, optimisations. The code is yours — if you want to continue with another team, you get the full repository and documentation.
Is the code mine? +
Yes, completely. When the project ends we transfer the repository to your account. Full IP ownership.
How much does hosting cost? +
Vercel: free up to ~100k requests/month, then from $20/month. Supabase: free up to 500MB, then from $25/month. Realistic cost for a small application: 0-200 PLN/mies. For a SaaS with 1,000+ users: 200-800 PLN/month.
Do you build native mobile apps? +
No. We specialise in PWA — one codebase, and it behaves like a native app on a phone. For 90% of use cases a PWA is the better choice than native: cheaper, faster and easier to maintain.

Have an Idea?
Let's Build It Together

30-minute call. Tell us about your idea — we'll say whether it makes sense, how much it costs and when it'll be ready.

Book a Free Call →

Or write: hello@syntelligence.one