baby calendar

baby calendar (株式会社ベビーカレンダー, baby calendar Inc.) is a Japanese company headquartered in Shibuya, Tokyo, that operates a pregnancy, childbirth and childcare information website and app of the same name. The service provides doctor- and expert-supervised content covering conception, pregnancy, delivery, and parenting up to around the child's first birthday, delivered in a daily calendar-like format. Its official app is used by more than 10 million people per month, according to the company's own description. The company was originally established in 1991 as Nihon Tect Co., Ltd., a management consulting firm. It became a subsidiary of Cookpad Inc. on June 1, 2015, when Cookpad's "Cookpad Baby" service was transferred to it and the company was renamed Cookpad Baby Co., Ltd. On May 27, 2017, it carried out a management buyout (MBO) from Cookpad and changed its name to baby calendar Inc. It listed on the Tokyo Stock Exchange in 2021. Beyond its flagship pregnancy and childcare site, the company has expanded into broader women's and family lifestyle media. It operates Moon Calendar (menstruation, romance, marriage, beauty), Woman Calendar (anti-aging), Senior/Kaigo Calendar (senior care), the Yuruppuru partner diet app, and the Shitteku matching-app media site. It also runs the Baby Pad series of services for obstetrics and gynecology clinics, and provides marketing solutions to medical corporations. In 2022 it acquired the diet app Yuruppuru, the influencer business gramo, and the matching-app media Shitteku; in 2023 it acquired the lifestyle media Yomuno from Shizuoka Online; in 2024 it acquired and absorbed Medical Research; and in 2025 it acquired Yui Co., Ltd. to enter the postpartum care business. It is scheduled to acquire all shares of Orange Page from East Japan Railway Company on November 2, 2026, making it a wholly owned subsidiary. The brand positions itself around the theme "A Sea Of Smiling Babies" (赤ちゃんの笑顔でいっぱいに), aiming to support mothers and families with trustworthy, expert-checked information. It also organizes the Baby Kare Manga Award, first held in 2022, and its app won the 12th Kids Design Award in 2018.

The company that operates baby calendar was originally established in 1991 as Nihon Tect Co., Ltd., a management consulting firm. On June 1, 2015, it became a subsidiary of Cookpad Inc., and the service "Cookpad Baby" that had been operated on Cookpad was transferred to it; the company was renamed Cookpad Baby Co., Ltd. On May 27, 2017, it carried out a management buyout (MBO) from Cookpad and changed its name to baby calendar Inc. In 2021, it listed on the Tokyo Stock Exchange. In 2022, the company acquired the diet app Yuruppuru, the influencer business gramo, and the matching-app media Shitteku. On November 14, 2023, it acquired the lifestyle information media Yomuno from Shizuoka Online Co., Ltd. In 2024, it acquired shares of Medical Research and absorbed it through a merger. In 2025, it acquired shares of Yui Co., Ltd. and entered the postpartum care business. On November 2, 2026, it is scheduled to acquire all shares of Orange Page from East Japan Railway Company and make it a wholly owned subsidiary. The company's main services span the pregnancy and childbirth domain—the Baby Calendar site, app, social media accounts, and weight management app, as well as the Baby Pad series for obstetrics and gynecology clinics and marketing solutions for medical corporations—and the broader women's domain, including Moon Calendar (menstruation, romance, marriage, beauty), Woman Calendar (anti-aging), Kaigo Calendar (senior care), Yuruppuru (partner diet app), and Shitteku (matching app introduction site), along with YouTube channels and lifestyle genre sites. Since 2022, it has hosted the Baby Kare Manga Award, with the first grand prize going to Chinakichi's "Boku to Kaette Konai Tsuma." Its app won the 12th Kids Design Award in 2018.

• 2026

  Scheduled to acquire all shares of Orange Page from East Japan Railway Company, making it a wholly owned subsidiary.

• 2025

  Acquired shares of Yui Co., Ltd. and entered the postpartum care business.

• 2024

  Acquired shares of Medical Research and absorbed it through a merger.

• 2023

  Acquired lifestyle media Yomuno from Shizuoka Online Co., Ltd.

• 2022

  Acquired diet app Yuruppuru, influencer business gramo, and matching-app media Shitteku; launched Baby Kare Manga Award.

• 2021

  Listed on the Tokyo Stock Exchange.

• 2018

  Baby Calendar app won the 12th Kids Design Award.

• 2017

  Management buyout (MBO) from Cookpad; renamed baby calendar Inc.

• 2015

  Became a subsidiary of Cookpad Inc.; Cookpad Baby service transferred; renamed Cookpad Baby Co., Ltd.

• 1991

  Established as Nihon Tect Co., Ltd., a management consulting firm.

Doctor- and expert-supervised pregnancy, childbirth and childcare information platform, expanding into broader women's and family lifestyle media.

• Baby Calendar website

  Pregnancy, childbirth and childcare information site with doctor- and expert-supervised articles, recipes, Q&A, and expert consultation.

• Baby Calendar app

  Official app used by over 10 million people monthly, offering daily information from pregnancy through childcare, with recording features and AI expert consultation.

• Baby Pad series

  Services for obstetrics and gynecology clinics to attract patients and improve operational efficiency.

• Moon Calendar

  Media covering menstruation, romance, marriage, and beauty.

• Woman Calendar

  Anti-aging media for women.

• Kaigo Calendar

  Media for senior and nursing care information.

• Yuruppuru

  Partner diet app.

• Shitteku

  Matching app introduction site.

• Yomuno

  Lifestyle information media.

1. 1【ベビーカレンダー】妊娠・出産・育児の基礎知識、離乳食レシピ｜ベビーカレンダーbaby-calendar.jp
2. 2ベビーカレンダーとは？ │ ベビーカレンダーbaby-calendar.jp
3. 3baby calendar - Wikidatawikidata.org
4. 4ベビーカレンダー - Wikipediaja.wikipedia.org