About Us
24U s.r.o.
24U s.r.o. is a customer-oriented company, based in Prague, Czech Republic, active on Czech and global IT market since February 2000. In the software area we focus on development, modification, and maintenance of custom software solutions, mostly integrated information systems and database, web, and native business applications, professional software testing, and creation of electronic books. We supply and provide long-term care for information technologies in education and businesses with focus on Apple technologies. We also integrate hardware technologies with software.
Customers in 76 countries
Thanks to the internet and ease of travelling, we can help help you with your systems, wherever you are. See where we have customers already:

Outsourcing services in the area of information technologies
We offer outsourcing of all kinds of services around information technologies to small, middle and big businesses. This included design and implementation of IT strategy, information security, custom software and hardware solutions, and also professional testing of software applications.
Our company excels not only by great knowledge and orientation in the IT industry, but also our ability to understand our customers. We combine proven methods into functional system, and thanks to that we are able to provide efficient solution tailored to the specific needs of each customer.

Expert in Apple technologies for Education and Business
We supply information technologies from Apple to businesses and schools, provide advisory, training and complementary services since 2003. Since 2010 we are also authorised by Apple Distribution International to present ourselves as Apple Solution Expert for Education. Since 2011 our portfolio of solutions includes iKufr, our own product for secure storage and transportation of tablets and mobile classrooms. We regularly host Teachers Summit, a whole-day educational conference about using modern technologies in education. Within Czech Republic we cooperate with over 250 schools, we have made over 150 iKufr cases, and organized 10 summits, visited by over 1000 attendees. We also provide an online education portal Inspiropad and help to the community forum iSen.

Software testing
We have a greatly coordinated team of over 25 qualified regularly trained specialists, consisting of a test managers, test analysts, testers, programmers, analysts and developers. Our experts are specifically focused on a complex offer of services in the area of quality assurance (QA) and testing. They have more than 15 years of experience with managing large and small testing teams, coordination and management of team members during preparation and execution of tests. They are professionals in every way, they know and follow standards and can find a solution for any requirements you may have.
With our team we will design, offer and perform testing of your solution, including optimal testing strategy. This way we have already tested more than 100 projects and completed more than 500 releases for customers from over 10 countries. Learn more about our services in this area on our Quality Assurance page.
Here's a brief overview of technologies and tools we use every day:

Claris Platinum Partner
We provide consulting and resell the FileMaker platform licenses since founding the company. We joined the FileMaker Solutions Alliance in July 2002 and remained well known member when it was renamed to FileMaker Business Alliance. In October 2016 we became a platinum level partner. In 2019, when FileMaker Inc. got renamed to Claris International, we became Claris Platinum Partner.

30 years of experience with the FileMaker® platform
HOnza Koudelka, co-founder of 24U and head of the 24U Software, developed his first FileMaker solution back in 1991, nine years before founding 24U. He remains the consultant for our whole FileMaker development team, sharing all his knowledge, and even won the FileMaker Developer Cup at FileMaker DevCon 2015, so the expertise we are offering to every customer is a real non-cumulated experience that goes far beyond the existence of our company.


5 FileMaker Certified Developers
We let our developers learn fast and from the best experts. Thanks to our internal training strategy every member of our FileMaker team achieves the FileMaker’s certification and then keeps it current with future versions going forward.

Integrating variety of technologies
We constantly keep meeting new technologies in our practice and one of our biggest strengths is fast adaptation and new skills development. Even though there is a wide range of technologies we keep returning to, mostly because we found them highly reliable, convenient, cost effective, and sustainable.
We have worked with and integrated together:
- macOS and Apple Mac computers, Windows, Linux, Android
- iOS, iPad, iPhone, iPod touch
- XCode, ObjectiveC, Swift - development of native apps for macOS and iOS
- FileMaker - database and workplace innovation platform for macOS, Windows, iOS, and web
- AppleScript - original scripting language of macOS
- Apache, MySQL, PHP, JavaScript - popular platform for building web applications
- HTML5, CSS3, AJAX - modern tools for building front-ends for web applications
- WordPress - popular CMS for administration of simple dynamic websites
- MailChimp - popular and easy-to-integration e-mail marketing system
- iKufr - our own product for secure storage and transportation of tablets and mobile classrooms
- FM Bench - our own product for optimization of database solutions and business processes
- Phidgets, Arduino, and Raspberry Pi - modular systems for custom hardware solutions
- RFID & NFC, Bluetooth, RS-232, weighing scales, refractometer, barcode scanners, label and receipt printers, POS payment terminals, motors, environmental sensors, encryption dongles, LCD displays and RGB LED Strips, telephone switches

28 FileMaker plug-ins created since 2001
We begun developing FileMaker plug-ins immediately after FileMaker released the first plug-in SDK and released the first plug-in under the name of 24U in 2001. Additional plug-ins followed, some of them as custom project, some are still available as our products:
Current products:
- Bridge for Arduino
- Bridge for Phidgets
- Gonector
- Phone Companion
- SimpleDialog
- SimpleFile
- SimpleTalk
- SimpleHASP
- SimpleSound
- Toolbox
Discontinued products:
- SimpleChart
- SimpleHelp
- SimpleHighlight
- SimpleCode (originally released as Transcoding Plug-In)
- Preferences+Globals
- VirtualUser
- Plug-In Template
Custom-made plug-ins for:
- Scales
- Microsoft Lync integration
- Event tickets reservation capacity checking
- Airline ticket data processing
- Print quality barcodes generation
- Optometric refractometer communication
- XML data parsing
- DBF import pre-processing
- External 3rd-party dynamic library integration
- QuickTime movie precise playback
Plus several internal use plug-ins
29 international events presences
To let our customers from around the world meet is in person we regularly appear at the main developers conference, hosted in the United States, originally named FileMaker Developer Conference, renamed to Claris Engage in 2020. Since 2011 we participate in several local events as well.
FileMaker DevCon / Claris Engage
- 2002 in Palm Desert, California
- 2003 in Phoenix, Arizona
- 2004 in Phoenix, Arizona
- 2005 in Phoenix, Arizona
- 2007 in Orlando, Florida
- 2008 in Phoenix, Arizona
- 2009 in San Francisco, California
- 2010 in San Diego, California
- 2011 in San Diego, California
- 2012 in Miami, Florida
- 2013 in San Diego, California
- 2014 in San Antonio, Texas
- 2015 in Las Vegas, Nevada
- 2016 in Las Vegas, Nevada
- 2017 in Phoenix, Arizona
- 2018 in Dallas, Texas
- 2019 in Orlando, Florida
- 2020 Claris Engange Virtual
Pause On Error:
- Pause[x]London 2011
- Pause[x]Berlin 2013
- Pause On Error Portland 2014 (remotely over Skype)
Tech Net:
- Genius Wanted London 2012
FileMaker Konferenz:
- 2016 in Salzburg, Austria
- 2017 in Salzburg, Austria
- 2018 in Malbun, Liechtenstein
- 2019 in Hamburg, Germany
DevCon Scandinavia:
- 2019 in Helsingør, Denmark
Meetings & Webinars:
Electronic books
Since the release of iPad in 2010 we help experts in their industries to create great e-books, which are not only digitized versions of their paper originals, They bring full interactive experience and maximum utilization of the technology to their readers. The e-books we create contain videos, interactive hyperlink, and mini-applications, they can adapt to impaired user, as well as provide full visual experience to aesthetical epicures. Our team stands behind electronic version of the most successful cookbooks authored by Roman Vaněk and published by Prakul Production, and behind the website NejlepsiKucharky.cz.
ISO 9001 Certified
Since April 2004, 24U is ISO 9001 certified for design, development, customization and implementation of software. Updated to the ISO 9001:2015 standard since March 2018.

By completing and sending the form you agree that 24U s.r.o., a company established under the laws of the Czech Republic, with its registered office: Zvole u Prahy, Skochovická 88, CZ-25245, registered in the Commercial Register with the Municipal Court in Prague, section C, inset 74920 will use your personal data contained in the form for the purpose of sending 24U’s news, updates and other commercial communications. Providing 24U with personal data for the said purpose is optional. Details on personal data processing and on your rights connected therewith are contained in 24U’s Privacy Policy.