My name is Hans-Peter Lehmann and I am studying Computer Science 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, www.hanspeter-lehmann.de. 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.