Perfect- and typical-use effectiveness of the Dot fertility app over 13 cycles

Researchers from the Institute for Reproductive Health (IRH) at Georgetown University Medical Center studied women’s use of the Dot app for pregnancy prevention over 13 menstrual cycles, or about one year.

The study, published in the European Journal of Contraception and Reproductive Healthcare, is the first to test a fertility app using best-practice guidelines for assessing effectiveness of family planning methods.

The researchers found that the app had a typical-use failure rate of 5 percent and a perfect-use failure rate of 1 percent, which makes Dot comparable to family planning methods such as the pill, vaginal ring, and other fertility awareness-based methods.

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