ALTER SOFT HOUSE Software House from Warsaw

Project and development studio for web and mobile applications

About us

We're a team of Project Managers, Programmers, UX and Graphics Designers with years of experience in biggest agencies, research teams and software houses in Poland.

See our portfolio

About You

We work with creative agencies, start-ups, marketing departments, companies that don't have inhouse development teams and everyone who needs to improve their online tools development.

What we do

We design both UX and UI, with interactive prototypes. We take care of coding both frontend and backend of your project. We create web and mobile apps. We can integrate payment system into your application.

See what we can do

Worked with us


PARP agency portal

In this project for a government agency, we rebuilt whole portal from scratch in Joomla. Whole portal, including multiple custom made modules, got WCAG approved.

Wordpress website for developer

We built a Wordpress based website for a housing developer, with CMS customized with added management of appartments and houses available.

Sebasian App

Mobile app created for Coty brand. Designed to be used by licensed hairdressers and cosmetology students, application works as an information hub and marketplace for professional hair care products.

NaoTech branding

Branding for the company creating information kiosks used on airports, shopping malls and expos.

Elastic Search based solution for a publisher

Big publisher asked us to create a search engine, that would search for text through multiple websites with millions of posts

Wordpress based website for an NGO

We have created a website of Fundacja Aktywizacja - an NGO that helps people with disabilities. We made sure that website is fully accessible for their clients.


How do we work, what tech do we use, what people we work with? These are the most frequent questions asked about our software house.

Free valuation

Are you interested with working with us, but need help with the project? Can't decide what services and technologies will fit your need best? Having more questions? Email or call us and we'll happily lead you through planning and decision process.

  • Desktop: Bootstrap 4, JavaScript (with jQuery and all libraries for it), CSS 3, Canvas.
  • Mobile: Apache Cordova, Framework7
  • PHP: Symphony, Laravel, Kohana
  • Python: Pyramid, Falcon, Flask, Django
  • CMS: Wordpress, Joomla
  • Node.js framework: Express.js
  • Databases: MySQL, PostgreSQL, Elastic Search
  • Web servers: nginx, Apache
  • Cache systems: Memcache, Redis
  • We can integrate your application with: PayU, Braintree, Straal, PayPal
  • Yes. We cooperate with additional good graphics and UX designers.
  • Yes. Most of our projects start with analysis of actual needs of our client, then we take care of the project through all phases of the development: design, coding, testing phase, release and support after the release.
  • We believe the key to successful software development lies in the teamwork. 6 developers work inhouse from our office, and we cooperate with freelance UX and graphics designers and testers. Our office is suitable for project meeting with our clients and we do have a multimedia conference room.
  • We're following different agile methodologies, selected depending on the needs of the project and our client.

We can integrate online payments into your project

Monetize your business around the world.

For big websites and e-commerce platforms, there's a need for fast search engine that support auto suggestions. Our developers are experience in this scenario. Contact us, we'll show you examples of how fast your website can be.

What we do