Ultimate Calc is a handy, simple, easy to use multitask scientific calculator.
The project is still under testing and development.
UltimateCalc is distributed under GNU LGPLv3 license. You can freely download the application and the source code from download page.
In case you have discovered a bug while using program, you can post a report. In other way you may use a report master, which is distributed as a part of UltimateCalc.
For any questions and suggestions, please contact with developer.