Finally, an accurate digital test that not only provides specific Luteinizing Hormone (LH) concentrations, a main indicator of ovulation, but also an accurate and personalized breakdown of your fertile AND infertile days through the Mira Fertility Tracker App. Experience personalized fertility tracking through the Mira system, which uses a learning algorithm to track and combine your hormonal and menstrual patterns to provide an accurate ovulation prediction specific to you. If you want the best in Fertility Testing chose Mira.