Web & API
software house

We design and build websites, web applications and API integrations that scale your business.

01

Websites

Fast, responsive company websites and landing pages optimised for SEO and conversion.

02

Web applications

Dashboards, SaaS systems, client platforms — from MVP to a scalable product.

03

API integrations

We connect your systems: payments, CRM, ERP, e‑commerce, automations and AI.

Selected work

Full‑stack · Marketplace · Payments

SailUp

A sailing trip booking platform connecting skippers with crew — with automatic payment splitting and support for the Polish and US markets.

Zero double bookings

Guaranteed no double bookings and financial settlements accurate to the last cent.

Split payments

Stripe Connect: platform fee, payouts to organisers, BLIK, Apple/Google Pay, refunds.

Multi‑currency

PLN/USD rates from the NBP API with server‑side caching.

PL / US routing

Country detection at the network edge — the right currency, language and payments.

React 19TanStack StartTypeScriptTailwind CSS v4PostgreSQL + RLSPL/pgSQLStripe ConnectNBP APICloudflare EdgeVitest
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Web app · Logistics & finance · PWA

Driver settlement & logistics system

A dedicated fleet app: live commission calculation, digital archiving of meter photos and ready‑made PDF settlement reports.

Immutable historical rates

Each route stores the rates valid at settlement time (PLN 0.25/km, PLN 0.30/l, PLN 9.00 per stop) — later price changes never break archived reports.

Live earnings calculation

The commission calculator in the route form updates the amount as data is entered.

Mobile meter records

Photos taken by phone, compressed and stored behind secure, time‑limited cloud links.

A4 PDF reports

Ready settlement documents with full Polish characters for dispatcher approval.

React 19TanStack StartTypeScriptTailwind CSS v4PostgreSQLCloud StoragejsPDFPWA
Portal · Education

Sailing school portal

A place where students and instructors share training materials — all in one well‑organised space.

How we work

  1. 01

    Discovery

    We learn your business goal and scope.

  2. 02

    Design

    Architecture, UX and a quote with no surprises.

  3. 03

    Build

    Short iterations, regular demos.

  4. 04

    Launch

    Go‑live, monitoring and further development.

Packages

Indicative gross prices. Every project is quoted after a free call.

* We are VAT‑exempt (Polish VAT Act, art. 113(1)) — no VAT is added to prices.

Prices in EUR converted from PLN at the NBP exchange rate (1 EUR = 4.4070 PLN, 2026-11-13).

Start

from €340

7–10 days

  • — Conversion‑focused landing page
  • — Mobile version
  • — Form + analytics
  • — SEO basics
  • — 14 days of support
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Most popular

Business

from €1,110

2–4 weeks

  • — 5–10 pages + CMS
  • — Custom UI design
  • — Technical SEO
  • — Blog / case studies
  • — 30 days of support
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API integration

from €660

1–3 weeks

  • — Payments, CRM, ERP, couriers
  • — Automations and AI
  • — Data synchronisation
  • — Documentation
  • — Error monitoring
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App / MVP

from €3,380

6–12 weeks

  • — Login and roles
  • — Dashboard and database
  • — Custom API
  • — 2‑week sprints
  • — Full code ownership
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Estimate the cost in 10 seconds

Project type

Size

Timeline

Estimated cost (gross)

We are VAT‑exempt — no VAT is added.

€340 – €480

Request an exact quote →

Free consultation

A 30‑minute call about your idea, no strings attached.

Fixed price

Scope and price agreed before we start — no surprises.

You own the code

100% of the copyright is transferred to you.

Post‑launch support

Up to 30 days of fixes included in every package.

FAQ

How much does a website or app cost?+

Package prices are a starting point. You get an exact quote after a short call, usually within 48 hours.

How soon can we start?+

We usually start within a week of quote approval.

Who owns the code?+

You do. After payment we hand over full rights and access to the code.

What if something breaks after launch?+

Bug fixes during the support period are included, and we offer ongoing maintenance afterwards.

Do I pay everything upfront?+

No. We bill in stages, e.g. 30% at the start and the rest after milestones.

Have a project? Let's talk.

We reply within 24 hours.

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or email us directly: kontakt@grabsitenow.com