2012
She won the bronze medal on vault in the 2012 European Women’s Artistic Gymnastics Championships.
Competing at the 2012 Summer Olympics as the only women’s gymnast from Switzerland, she finished 14th in the women’s individual all-around with a score of 56.148.
In December 2012 she competed at the World Cup event in Stuttgart, Germany and won bronze with a total score of 55.565, which included an impressive vault score of 15.400.
2013
Steingruber competed at the City of Jesolo Trophy in March and placed 8th in the individual all-around, with a total score of 55.550. Later that month she competed at the La Roche-sur-Yon World Cup event in France and placed first on the vault and uneven bars with scores of 13.433 and 13.600 respectively. She went on to win bronze in the vault final at the Doha World Cup, scoring a 15.225 on her first vault and a 14.100 on her second, for an average of 14.662.
At the 2013 European Artistic Gymnastics Championships in Moscow she qualified first into the vault final and went on to take gold with an average of 14.750. She also qualified for the individual all-around and floor finals. In the all-around final she tied for fourth with Romanian gymnast Diana Bulimar with a score of 57.065, while on floor she finished 6th with a score of 14.100.
At the 2013 World Artistic Gymnastics Championships, Steingruber finished seventh in the all-around, fourth on vault, and fifth on floor exercise
