
Custom software that fits your process.
For what no standard package does well: web apps and portals, integrations between your systems, AI tools and fast front ends. Built by developers you know by name, with code that is yours once paid.
Apps, integrations and AI tools, tailored. Code and Git repo are yours.
Integration from €2,500 excl. VAT · web app on request · fixed price up front
- Based in Julianadorp, NL · Chamber of Commerce 54099897 · you talk to the people who build it
What is custom software, and when do you choose it?
Custom software is built for your process, instead of a standard package you bend your process to. Sharp Creations, a small team in Julianadorp (North Holland, the Netherlands), builds web apps (price on request, after a call), API integrations (from €2,500 excl. VAT), AI tools and front ends. Once paid you get the code and the Git repository, and we host in the EU. Only choose custom when a standard package really pinches; we will tell you honestly when it does not.
What we build.
Custom web app development
Customer portals, planning tools and internal tools, from first version to product.
API integrations
Systems that exchange data on their own, with error handling and monitoring.
Custom AI applications
Tools that read, summarise or answer questions on your own data.
Online platform development
Member areas, marketplaces and portals with many users. Price after a call.
Frontend development
Fast, accessible interfaces in Next.js and React.
Firebase or Azure app
Your app on Firebase, or on Azure in your Microsoft environment.
Standard package, no-code or custom?
| Standard package (SaaS) | No-code (Zapier, Make, Bubble) | Custom | |
|---|---|---|---|
| Quick to start | Yes | Yes | Weeks to months |
| Fits your process | You adapt to the package | Reasonably, up to a limit | Exactly |
| Costs | Subscription per user | Subscription plus build hours | Build up front, then hosting and maintenance |
| Owner | The vendor | The platform | You: code and repo once paid |
| Choose when | Your process is standard | It is small and not business-critical | It sets you apart, or standard leaves too much manual work |
Often the best answer is a mix: a standard package for what is standard, with an integration or a small app of your own for the part that sets you apart. See also Zapier, Make or custom.
How we build custom software.
- 01
Discovery
Your process, users and systems mapped. What belongs in the first version, and what does not?
- 02
Proposal with a fixed price
Scope, planning and a fixed price per phase. Extra work only with your approval.
- 03
Build in sprints
A demo of something working every sprint, so you can steer in time.
- 04
Launch and build on
Launch, operations and further development on what users really need.
Our technology, in plain language.
The stack
TypeScript, Next.js and React for the front end; Firebase, Azure or a Postgres database for the back end. Mainstream technology, so another developer can carry on later. Which back end fits: Firebase, Supabase or Azure.
Hosting in the EU
We host in European data centres and take care of backups and logging. If you work with personal data, a data processing agreement is available on request.
Security
Sign-in with roles and permissions, as little access as needed per user and per integration, no passwords or keys in the code, and dependencies we keep up to date.
Ownership
The code lives in Git, with documentation. Once paid, the repository is yours. Build bugs that turn up after delivery, we fix free of charge.
What we have built.
A public web-app case is not on the site yet; part of our development work is white-label for agencies, and we do not name those clients. What you can see:
- the online store of Hondenvoeding Texel, fully custom-built on Firebase;
- this website: Next.js on Firebase, bilingual, with its own CMS and admin that we built ourselves;
- our advisor tool, a wizard that gives advice and a ballpark price in a few questions.
What drives the price.
An API integration starts at €2,500 excl. VAT. Web apps, platforms and frontend projects are priced on request, after a call: you get a fixed price per phase up front. What determines the price:
- the number of screens, roles and processes;
- integrations with other systems;
- data that needs migrating;
- AI components, including the model’s usage costs;
- requirements for security and availability;
- operations and further development after launch.
You talk to the developers.
No account manager in between. Call, message or email; you usually get an answer within one working day.


One number for the four of us. We reply within one business day. Based in Julianadorp; online, or we come to you.
Good to know.
Question not listed? Just ask, one of the four of us will answer.
Ask your questionWhat does custom software cost?
Do I get the source code of my software?
Who maintains the software after delivery?
Can a small team handle custom software?
Do you work white-label for agencies?
Where is my application hosted?
How do I start a custom project?
What do you want to have built?
A few sentences about your process and, if you know it, your budget are enough. You usually hear back within one working day, with a proposal or a few focused questions.