The converter provides a lot of variables within those units between different can be converted. Both common units as well as outdated units are represented. In the settings can be defined for each size, which units are to be offered at all - which increases the clarity immensely! Major drawback of the app is the fact that they (are except some Asian units are displayed both in the original language as well translitteriert) completely and therefore comes exclusively in English. Who in the English language (and in particular in the units) so is not safe on the road, will fail in many units, especially older or only need to find a translation. Then you have usually already the conversion. Example: is a "morning" (square measure) the same as a "acre"? What does "Elle" (measure of length) in English or there are the not the English? Likewise, "cartload" or "yards" (cubic measure). The casual user who accesses the current standard units, will certainly get along well with this app. The scientific use should fold easily, as the Wissenschaflter usually his units also knows in English. All others should be better looking for a complete German-language app or create a shortcut to an online converter.