Custom software development
Web applications, internal systems and automation for small and medium-sized businesses. With AI, you get them sooner and at a fair price. But every important decision is yours.
Services
Booking systems, ordering systems, client portals – apps that run in the browser and on mobile.
Custom record-keeping, inventory, attendance tracking or CRM – instead of spreadsheets you’ve outgrown.
We connect systems that don’t talk to each other and put an end to copying data by hand.
We bring AI into your processes where it truly saves time – safely and under control.
How we work
We talk through what you need and how your business works.
You know the scope and expected cost before we start.
A first working version within 4 weeks, then regular demos.
The code is yours, we train your team, and we fix bugs free of charge for 6 months.
About us
EärenTech is a Czech company based in Prague. We build custom software the modern way – with AI agents, but always under human control.
You talk directly to the people building your software.
We make full use of AI, but we stand behind every line of code.
We learn how your business works and what will really help it.
You see a first working version in weeks, not months.
Software built around your processes, not a template.
A clear price estimate up front, regular demos, and code that belongs to you.
FAQ
AI agents handle the routine part of the work for us: they write and test code based on a brief we prepare together with you. But a person reviews and approves every change before it reaches you. That makes development faster, never unchecked.
You do. With custom-built software, you receive the complete source code on handover, together with the rights to keep using and modifying it – with us, with another supplier or with your own team.
After the initial consultation, we’ll send you a price estimate with a breakdown of the work. You’ll know the scope and expected cost before anything starts.
It depends on the scope. We usually show you a first working version within 4 weeks of receiving the brief, then fine-tune it with you step by step.
Contact
Tell us what you need. We’ll get back to you within 2 working days to arrange a free consultation.