SG Sartori Giulia
Custom App

A web app built around your workflow.

A custom web application, designed and built end to end — from requirements and UI/UX through backend, database, APIs, testing and deployment.

from 5,500
TimelinePer scope
Best forTeams & startups
EngagementIterative
DeliveryEnd-to-end
(01) — What we do

The full build cycle, handled end to end.

Every custom application follows the same disciplined path — from a clear scope to a deployed, tested product you own.

01

Requirements analysis

We map your workflow, users and constraints, then turn them into a concrete feature set, data model and a fixed, scope-based quote.

02

UI/UX implementation

Interface and flows designed around how your team actually works — reviewed and refined before a line of production code is written.

03

Frontend development

Fast, accessible, responsive interfaces built with clean, hand-written code — no page-builders, no throwaway templates.

04

Backend development

Application logic, authentication and business rules engineered to be reliable, secure and straightforward to maintain as you grow.

05

Database configuration

A schema designed for your data, tuned for integrity and performance — so the application stays fast as records and usage grow.

06

API integration

Connections to the tools and services you already rely on — payment, email, CRM or bespoke third-party APIs — wired in cleanly.

07

Testing

Functional and edge-case testing across devices and flows, so the product behaves the way it should before anyone else touches it.

08

Deployment

We ship to production, connect your domain, configure SSL and hosting, and hand over a live application that is ready to use.

(02) — What you can build Have something else in mind?

From internal tools to full products.

Internal tools & dashboards

Bring scattered spreadsheets and processes into one fast, purpose-built interface for your team.

Client portals

Secure, branded spaces where your clients log in to view, share and manage their work with you.

Booking & reservation systems

Availability, scheduling and confirmations tailored to how your service actually operates.

Marketplaces

Multi-sided platforms with listings, accounts and transactions connecting buyers and sellers.

SaaS MVPs

A lean, well-engineered first version of your product — ready to put in front of real users.

Workflow automation

Replace manual, repetitive steps with logic that connects your tools and moves work forward.

(03) — Proof

A real app, delivered.

Giulia delivered our custom web application end to end — requirements analysis, design, backend and deployment. Communication was clear throughout and the result is exactly what we needed.”

S
Sales Rise Up B.V. Verified client
Apeldoorn, Netherlands
On file

One delivered custom web application, taken from analysis through to a deployed product in production.

Your project could be the next case study here. Scope it with a short discovery call and get a clear, fixed quote.

(04) — Compare plans

Pick the right scope.

Starter 01
500

A fast, affordable one-page site for freelancers and micro-businesses.

  • One-page site, fully responsive
  • Branded to you: logo, colors, fonts
  • Domain & hosting setup included
  • Contact form & social buttons
Business 02
1,200

A full multi-page website or a small mini-shop you can edit yourself.

  • Multi-page site or mini-shop
  • Custom design — not a bare template
  • CMS you control
  • Basic SEO & analytics setup
Custom App 03 · This plan
from 5,500

A custom web application engineered around your workflow, end to end.

  • Requirements analysis & UI/UX
  • Frontend, backend & database
  • API integrations
  • Testing, deployment & iterations
(05) — FAQ

Custom app questions.

Anything else? Just ask

Every custom app is quoted on scope. After a short discovery and requirements phase we agree on features, data model and integrations, then set a fixed price. The €5,500 figure is a starting point — the exact quote depends on what you're building.

Yes — this is full-stack work. Backend development, database configuration and API integrations are all part of the engagement, alongside the frontend and UI/UX.

Yes. Integrating with the services and APIs you already use — payments, email, CRMs or bespoke third-party systems — is a standard part of a custom build, mapped out during requirements analysis.

The build ends with testing and deployment to production. From there you can take it fully in-house, or continue with optional maintenance and iterations as your needs evolve.

Let's build

Have a product to build?

Tell me about your workflow and what it needs to do. I'll reply within about 48 hours with next steps and a clear, scope-based quote.