OvuSense

OvuSense is a women's health and fertility technology company best known for its OvuSense ovulation monitoring products and app-based cycle analytics. The company commercializes FDA-cleared fertility monitoring devices, including the OvuCore vaginal sensor and OvuFirst skin-worn sensor, which use continuous temperature measurements and proprietary algorithms to predict and confirm ovulation. Its products are positioned for pregnancy planning and cycle monitoring, particularly for women with irregular periods or PCOS. Historically the business has operated under the legal name Fertility Focus and later the name viO HealthTech. In August 2025, viO HealthTech, the maker of OvuSense, announced that it had been acquired by Ultrahuman, while continuing operations and customer support.