Developing, updating and testing android apps

Desktop apps

Developing, and testing small desktop apps


Testing Android apps, Windows apps and websites

I´m David Šimák and I´m 19 years old software developer.
Now I’m studying at Střední průmyslová škola in Zlín, Technical lyceum.
I have more than 2 years experience in developing android applications. These apps I developed in Android Studio in Java. Some of these apps I’ve published on Google Play. I also have more than 1 year experience in developing windows apps in Visual Studio in C#. This summer I also started to develop Web applications in Javascript and C # in Visual Studio. Some of my web applications will be published by the end of 2017.

My work

Here is some of my work. All my works are on portfolio page.

Formula Solver

Physical, mathematical and chemical calculation.


Chemical elements, compounds and periodic table

Math Calculator

Mathematical calculating in your pocket


Simple app with physical constants, formulas and more

PDF Converter

Simple app to converting PDF files to image.