Spreadsheets that became essential
Files and spreadsheets that began as temporary solutions and are now a critical part of the operation.
CUSTOM BUSINESS SYSTEMS
We simplify the way your business operates.
We design custom applications, automations, and tools that connect with the systems you already use and reduce manual work in your daily operations.
You do not need to replace your ERP, PMS, e-shop, or any of your other tools. We build what is missing between them.
Your business today
01 Your systems ERP · PMS · E-shop · Excel
02 Lease Sun Custom workflow · Automation · Data
03 One clear process Fewer steps · Better visibility
We do not start with technology. We start with the process that is slowing you down.
THE PROBLEM
Most businesses already have enough software.
The problem is that much of the real work still happens outside it.
Duplicate data entry
The same data is entered manually from one system into another, again and again.
Email & WhatsApp workflows
Approvals, updates, and important information get lost in messages and conversations.
Manual checks
People constantly check whether something was done, updated, or answered.
Copy-pasting data
The information already exists somewhere, but someone still has to move it to the next place.
Limited visibility
Management needs multiple exports and files to understand what is actually happening.
WHAT WE BUILD
Focused systems for real everyday processes.
We do not build software simply because it can be built. We start with a specific operational need and create the tool the business actually needs.
Internal applications
Tools for orders, bookings, tasks, approvals, customers, payments, and internal processes.
System integrations
We connect the tools you already use so that data moves between them without constant copy-pasting.
Automations
Repetitive actions are carried out automatically when the right trigger occurs.
Dashboards
The information you actually need, brought together in one clear, practical view.
IN PRACTICE
From an everyday problem to a simple workflow.
The problem does not need to be large or impressive. It only needs to happen often enough to cost you time.
BEFORE
→Spreadsheets, emails, and phone calls for clients to categorize their bank transactions.
AFTER
A shared application where clients categorize each transaction and the accountant can track progress instantly.
BEFORE
→Orders in the e-shop, while the actual fulfilment process is organized through spreadsheets and notes.
AFTER
Order → payment → preparation → packing → courier → completion, in one workflow.
BEFORE
→PMS, WhatsApp, housekeeping notes, and separate files for daily operations.
AFTER
Arrivals, departures, housekeeping, payments, and pending tasks in one practical view.
BEFORE
→Market data that requires constant manual collection, processing, and comparison.
AFTER
A database, historical tracking, comparables, and dashboards that turn data into insight.
CUSTOM INTERFACES
The tool adapts to the work. Not the other way around.
HOW WE WORK We start with the process.
We start with the process.
Not the software.
Before deciding what should be built, we first want to understand what is actually happening today.
Understand
We examine how the process actually works, who does what, and where delays or errors occur.
Simplify
Before writing code, we examine which steps can be removed or handled differently.
Design
We create the workflow and interface around how it will actually be used every day.
Connect
Where needed, the new system communicates with your existing tools and data sources.
Improve
Based on real-world use, we refine the system wherever needed.
WHEN IT MAKES SENSE
Custom software when the process has a real cost.
Not every problem needs a custom application. There needs to be enough repetition or friction for a better process to create real value.
✓
Repetitive manual work
✓
Multiple tools and data sources
✓
Workflows based on Excel or Google Sheets
✓
Constant manual transfer of data
✓
Limited visibility into what is happening
✓
A need that available tools do not address properly
If an off-the-shelf tool already solves your problem properly,
we will most likely recommend that you use it.
Custom does not mean building everything from scratch. It means choosing the simplest solution that properly supports the process.
WE KEEP WHAT ALREADY WORKS
Your existing systems can remain in place.
The new tool can work alongside them, connecting the processes that are currently left unsupported.
01 Your systems
Lease Sun 03 Your daily process
WHY CUSTOM
The software adapts to the work. Not the work to the software.
A generic system must serve thousands of different businesses. A custom tool can be designed around your own needs.
01 Your team
02 Your process
03 Your data
04 Your tools
DIRECT COLLABORATION
You speak directly with the people who will understand and design your process.
No layers of account managers and no ready-made solutions that we try to force into every situation. We start with how your business actually operates.
LET'S START WITH SOMETHING SIMPLE
Which process in your business is still more complicated than it should be?
Tell us how it works today. Together, we can see whether there is a simpler way.