Regelzeit

Private cycle tracking

Only for iPhone

Free · Designed for iPhone. Not verified for macOS.

iPhone

Regelzeit is your personal cycle companion - made in Germany with an absolute focus on privacy. All your data stays on your device. No cloud, no tracking, no ads, no third-party SDKs. CYCLE WHEEL & 4-PHASE TRACKING Follow your cycle on the interactive cycle wheel. Regelzeit calculates your current phase - menstruation, follicular, ovulation or luteal - and shows how many days remain until your next period. DAILY JOURNAL Log mood, energy, symptoms, pain level and flow intensity in seconds. Optional: basal body temperature (BBT), cervical mucus, LH tests, sexual activity, sleep and skin. BBT TEMPERATURE CHART Track your basal body temperature across the cycle in a clear chart - helpful when trying to conceive or for natural family planning. Regelzeit detects ovulation from your temperature and LH data. FERTILE WINDOW & TRYING TO CONCEIVE Regelzeit calculates your fertile window and shows a countdown on the dashboard. Ideal if you are trying to get pregnant. PERIOD CALENDAR Color-coded month view with phases, period markers and your fertile window. Tap any day to see details or add entries retroactively. PLAN WITH YOUR CYCLE The activity planner finds good time windows for workouts, presentations or doctor visits - matched to your phase, never patronizing. The PMS radar learns your personal patterns and warns you 1-5 days ahead. Optionally, the calendar integration shows your upcoming events with the projected cycle phase. DISCOVER: RECIPES, TIPS & KNOWLEDGE 161 cycle-friendly recipes with photos and phase reasoning, 104 tips (fitness, nutrition, lifestyle, skincare, sleep) and 205 phase-based recommendations - all matched to your current cycle phase. CYCLE KNOWLEDGE Learn what happens in every phase of your cycle: hormones, symptoms and practical tips. Includes medical guidance with 8 red flags. PRIVACY & GDPR - 100% local data storage (no server, no cloud) - No ads, no tracking, no analytics - No third-party SDKs - Encryption with NSFileProtectionComplete - GDPR-compliant consent, data export and deletion - Age verification (16+) - Privacy policy and legal notice inside the app MORE FEATURES - Fully bilingual: English & German - Dark mode and light mode - VoiceOver and Dynamic Type - Data export (JSON) - Period prediction as an honest time window instead of fake precision - Personalized recommendations based on your logging Medical note: Regelzeit is not a medical device and does not replace medical advice. The app is intended solely for personal documentation and information. If you have health concerns or questions, please consult a doctor. Regelzeit is not suitable for contraception.

Ratings & Reviews

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New in 1.2.0: • Widgets for Home and Lock Screen: cycle day, phase, countdown and daily tip – can be switched off under Profile → Widgets • Dashboard reorganised: Status, Body, For you – at most one notice, the rest stays calm • Diary: edit or delete entries, undo after saving, “Bleeding today?” during your period • Reminders at a time of your choice that stay quiet once you have logged today • Calendar with legend, monthly overview and a forecast for upcoming days • Accessibility: VoiceOver, Dynamic Type, stronger contrast, reduced motion on request • Privacy policy 1.1: explains widgets, Siri, app lock and calendar access; the backup exclusion of the database now also covers its journal files • Many fixes, including blank sheets when first opening a day in the calendar and missing icons

Version 1.2.0

The developer, Eugen Hinz, 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, for example, based 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

    Seller
    • Eugen Hinz
    Size
    • 15.8 MB
    Category
    • Health & Fitness
    Compatibility
    Requires iOS 17.0 or later.
    • iPhone
      Requires iOS 17.0 or later.
    • Mac
      Requires macOS 14.0 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 1.0 or later.
    Languages
    • English and German
    Age Rating
    13+
    • 13+
    • Learn More
    • Infrequent
      Medical Treatment information

      Contains
      Health or Wellness Topics
    Copyright
    • © 2026 Eugen Hinz
  • Developer Website
  • Privacy Policy

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