Dayima, a Chinese app for period tracking and women’s health, announced today US$30 million in Series C funding from Ceyuan Ventures and existing investors, Sequoia Capital China and Bertelsmann Asia Investments. So far the company has raised three rounds in about a year that totals US$45 million: US$5 million from Bertelsmann and ZhenFund in April 2013, and US$15 million in Series B led by Sequoia and joined by the earlier two in last September.

Launched in January 2012, Dayima claims it has had 45 million registered users and 3.2 million daily active users.

It’s direct competitor in China is Meet You, which has raised two rounds of funding in less than a year. The two apps had a fight earlier this year. After two reports by two Chinese research firms shew Meet You had more users than Dayima, the former would be accused of inflating numbers in various ways.

Both apps have similar offerings when it comes to features related to menstruation. Dayima has been adding content on women’s health & fitness and beauty. At the same time it’s been working on versions for health appcessories. The app has been integrated into Samsung smartwatch Gear 2 and smart scale PICOOC. Dayima also has a version for men to see records of their female friends.

Tracey Xiang is Beijing, China-based tech writer. Reach her at

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