You could have downloaded swisstopo NAVREF 3.0.453 from our software library for free. The most popular version of the program is 3.0. The program lies within Office Tools, more precisely Calculators. This program was originally created by swisstopo. The most frequent installation filename for the program is: navref.exe.
From the developer:
NAVREF is a program for the transformation of global WGS84-coordinates in Swiss projected coordinates LV03 and vice versa.
This program is not designed for high-precision applications, but for navigation as well as for the transformation of coordinates that are derived from a geodetic data portal on the Internet, from a software like Google Maps or have been extracted from maps.
You may want to check out more software, such as RealData® Real Estate Calculator, AcadCalc or iUnit, which might be similar to swisstopo NAVREF.