4mobile

One development house for trading apps and music services

4mobile is a Czech firm whose legal name is 4mobile s.r.o., that develops applications for several platforms at once. The firm describes itself as one development house for all platforms. It handles the back-end architecture of a product as well as the client applications that users see, so that a customer can concentrate on the product while the firm deals with the technical work.

Mobile trading applications

The firm's most visible work in its own material is a pair of trading applications built for the broker XTB. The xMobile application covers financial instruments traded over the counter and on major stock exchanges. It includes customisable charts, indicators, drawing and notes, economic information and video tutorials. The xTab application is a tablet version of the same work repurposed for the small screen. A mobile web landing page, a Java deployment service and an SMS link service support the same solution.

Streaming and language applications

For a legal music streaming and download service called MusicJet, the firm built back-end and front-end technology, including the architecture design and its implementation. The service was built with record labels, and the firm describes its part as supplying the server farm and the client software across several platforms. It also built a phrasebook application with National Geographic, which teaches useful phrases in a number of languages for holidays, business trips and personal study.

Platforms and technology

The firm's list of technologies covers .NET and IIS on the server side, Microsoft SQL Server for the back-end server farm, and client software for mobile and desktop systems, including the web. The web clients use HTML5 and Flash. Its material says it builds bridges across the gaps between technologies, so that the client's own product can reach users wherever they are. The firm presents its work as a single team handling the whole stack, from the server to the phone.