Contraception

A phone app for birth control

Physicist Elina Berglund on why she developed the world's first contraceptive app.
Physicist Elina Berglund on why she developed the world's first contraceptive app. Natural Cycles tells women how fertile they are on different days. It took 4% of the contraceptive market when it was launched in Sweden, but has encountered resistance from regulators and makers of conventional contraceptive methods.

(Photo: Natural Cycles user interface, Credit: Natural Cycles)