Kalena: Period & Cycle Tracker

Private, Ad-free & Offline

Only for iPhone

Free · In-App Purchases

iPhone

Kalena is a privacy-first period tracker built around a single rule: your health data never leaves your phone. No account. No analytics. No ads. Most period apps are surveillance products dressed in pink. Kalena has no backend or database to breach, no server and no third-parties tracking your cycle. Your data lives in a local database on your device. WHAT YOU CAN TRACK - Periods with flow intensity and notes - Symptoms across 9 categories (cramps, mood, bloating, fatigue, and more) with a severity scale - Cycle dates with full calendar history - Optional Basal Body Temperature (premium) WHAT YOU GET TO SEE - Current cycle phase: menstruation, follicular, ovulation window, or PMS - Predicted next period and fertile window - Days until next period and pregnancy probability - Cycle insights and personal patterns PRIVACY BY DESIGN - All data stored locally in SQLite on your device - Zero network requests during normal use - No account required, just open the app and start tracking - Optional biometric lock for an extra layer of privacy - Full GDPR compliance: export your data anytime, delete it instantly PREMIUM No subscription. Unlock advanced features once, keep them forever: - Smart Predictions: confidence-scored next-period estimates using your full cycle history - Advanced Analytics: regularity score, cycle and period charts, symptom patterns - BBT Tracking with ovulation detection - Health Report PDF to share with your GP if you choose to WHO IT'S FOR - Anyone tired of period apps that sell their data - People who want simple cycle tracking without 14 popups about consent - Those tracking fertility (TTC) who need accurate predictions - Privacy-conscious users - Perimenopausal users who need irregular cycle support NOT A MEDICAL DEVICE Kalena is a tracking and informational tool. It is not a contraceptive method and should not be used to diagnose any medical condition. Always consult a healthcare professional for medical advice. If you have feedback, let us know at hello@kalenaflow.com ——— Privacy Policy: https://kalenaflow.com/privacy

Ratings & Reviews

  • This app has not received enough ratings or reviews to display an overview.

• Optional reminders - get a gentle heads-up before your period is expected, or to remind you to log it. Discreet mode available to hide notification text. • Small improvements under the hood. As always: your data stays 100% private and remains on your device.

Version 1.1

The developer, Kalena Flow 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 Not Collected

    The developer does not collect any data from this app.

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

    Accessibility

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

    Information

    Provider
    • KALENA FLOW LIMITED
    Size
    • 48.4 MB
    Category
    • Health & Fitness
    Compatibility
    Requires iOS 15.1 or later.
    • iPhone
      Requires iOS 15.1 or later.
    • iPod touch
      Requires iOS 15.1 or later.
    Languages
    • English
    Age Rating
    13+
    • 13+
    • Learn More
    • Infrequent
      Medical Treatment Information
    In-App Purchases
    Yes
    Copyright
    • © 2026 Kalena Flow Ltd
  • Developer Website
  • Privacy Policy

    • Supports

    • Family Sharing

      Some in-app purchases and subscriptions may be shareable with your family group when Family Sharing is enabled. Learn More

    You Might Also Like