Custom applications
Custom web application development
When spreadsheets, email and off-the-shelf software no longer keep up with your business, we build a web application that does exactly what you need — in the browser, on desktop and mobile, with no installation.
We have built systems for invoicing, e-invoices, fiscalisation and vending machine monitoring, an organiser portal for events and admin systems for institutions. We build in modules, so solutions grow with your business.
What we build
Applications for real business processes — from data entry to reports.
- Business systems and dashboards
- Invoicing, HUB-3 QR payments and financial reports
- E-invoices and document management (DMS)
- Receipt fiscalisation
- Portals for partners, organisers and users
- API integrations, automation and AI document processing
Monitoring and reports
Data from several sources in one place, charts and Telegram or email alerts when something goes wrong.
Finance
Creating, sending and printing invoices, recurring invoices and monthly reports.
Documents
Receiving e-invoices, multi-level approval, assignment to users and long-term e-archive.
Portals
External users enter data themselves (e.g. events) and you review and approve it.
How we build
Proven open source technologies and your data on a server you control.
- Laravel, PHP, Python (Flask)
- MariaDB / MySQL, PostgreSQL
- Role-based access and full activity log
- REST API for connecting other systems
- Deployment on a Linux server, backups and monitoring
Modular
We start with what matters most and add new parts when they are needed.
Security
Roles, activity logging, abuse protection and secure data storage.
Moving from an old system
We migrate data from old software and databases and run both side by side until the new system takes over.
Support
Direct contact with the person who wrote the application.
How we work
Consultation
We get to know your business, your goals and what the site needs to achieve.
Proposal and quote
We propose scope, structure and technology and send a written quote.
Build and test
We develop, test on mobile and desktop and deploy to the server.
Support
We monitor, update and improve after launch.
Applications and systems we have built
Narančino
System for fresh orange juice vending machines: machine sales, receipt fiscalisation, monitoring and reports in one place (Laravel, MariaDB, Vendon API, Telegram).
DromedarFin
Invoicing system: PDF invoices, HUB-3 payment QR codes, email delivery and reports.
E_DMS
E-invoice management system: sync with e-invoice portals, multi-level approval and e-archive (Python/Flask, PostgreSQL).
Experience Dubrovnik
Website of the Dubrovnik Tourist Board: events calendar, organiser portal, two languages and structured data for events.
Frequently asked questions
When do I need a web application instead of off-the-shelf software?
When off-the-shelf software forces you to adapt your work to it, when you copy data by hand between tools, or when you need a report no program provides.
How much does a web application cost?
It depends on the number of features, users and integrations. We suggest starting with the most important part; we send a quote after a consultation and process description.
Where is my data?
On a server you control — your own or with a hosting provider of your choice. We also set up regular backups.
Can it connect to my accounting or ERP?
Yes, via API or file exchange (XML, CSV, PDF), depending on what the other system supports.
Do you handle fiscalisation and e-invoices?
Yes. We have built a system that fiscalises receipts from vending machines and a system for receiving and approving e-invoices.
Related services
Tell us about your process
Tell us what you currently do by hand or across several tools. We will propose how to bring it into one application.