Zach was born in Losenstein, Austria on 8 February 1900.
After studying painting she went on to learn enamel work at the studio of Josef Hoffmann.
She was a member of Wiener Frauenkunst (Viennese Women's Art) and the Hagenbund.
[2] Zach traveled to France and England, settling in Paris in 1930, where she died on 13 December 1930 at the age of 30.
[3] Her work was included in the 2019 exhibition City Of Women: Female artists in Vienna from 1900 to 1938 at the Österreichische Galerie Belvedere.