27
University of Colorado, Department of Physics
119
Freeware
Build an atom out of protons and see how the element, charge, and mass change.
ProtonicSoft
Shareware
Design CD/DVD labels with many advanced features and simple user interface.
34
ProtonVPN AG
41,695
Shareware
Protects your connection by routing your traffic through multiple servers.
30
University of Colorado, Department of Physics
45
Freeware
Use the sim to learn about isotopes and atomic mass of an element.
