NyxFlow - AI Menstrual Tracker

Cycle Tracking

Only for iPhone

Free · In-App Purchases · Designed for iPhone

iPhone

Track Your Cycle with Confidence! Period Tracker Happy Day helps you effortlessly log your menstrual cycle, predict upcoming periods, and identify fertile windows. Designed for women who want to understand their bodies better—whether for pregnancy planning or natural contraception. Key Features: Smart Predictions: Automatically calculates your next period, ovulation days, and safe periods based on your data. Fertility Insights: Clear charts and notifications for ovulation and high-risk pregnancy days. Privacy First: Your data stays on your device—no cloud storage Privacy Policy: https://www.partneraichatbot.com/periodhappyrabbit/Privacy.html Terms Of Use: https://www.partneraichatbot.com/periodhappyrabbit/TermsOfUse.html

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The developer, Shenzhen Youmei Interactive Technology Co.,LtD, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Used to Track You

    The following data may be used to track you across apps and websites owned by other companies:

    • Identifiers
  • Data Not Linked to You

    The following data may be collected but it is not linked to your identity:

    • Identifiers

Privacy practices may vary based, for example, on the features you use or your age. Learn More

The developer has not yet indicated which accessibility features this app supports. Learn More

  • Provider
    • Shenzhen Youmei Interactive Technology Co.,LtD
  • Size
    • 112.8 MB
  • Category
    • Health & Fitness
  • Compatibility
    Requires iOS 15.0 or later.
    • iPhone
      Requires iOS 15.0 or later.
    • iPod touch
      Requires iOS 15.0 or later.
    • Mac
      Requires macOS 12.0 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 1.0 or later.
  • Languages
    • English
  • Age Rating
    16+
    • 16+
    • Infrequent
      Mature or Suggestive Themes
      Medical Treatment Information
  • In-App Purchases
    Yes
    • Weekly Member Rp 249ribu
    • Yearly Member Rp 499ribu
    • Life Membership Rp 799ribu
    • Yearly Member Rp 699ribu
  • Copyright
    • © PeriodTracker@2025