School Marks


My name is Hans-Peter Lehmann and I am studying IT in Germany. Because I am developing Android apps since 2011, I am quite experienced in this field. My apps on Google Play have around 1,000,000 downloads from all over the world. I also worked for various companies to develop Android apps. Additionally, I compile and modify the Android system to get an insight on how the whole system works. I contribute to open-source applications like AntennaPod and K-9 Mail. You can view on my open-source contributions on GitHub and GitLab.

Furthermore, I develop complex and feature-rich websites and databases for various purposes as well as Java and native applications for PC. Some of my current projects can be found on my private website,

If you have any questions, do not hesitate to contact me using the contact form on this website. I usually respond within 3 working days.

Hans-Peter Lehmann