About this app
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.
Audience growth
Ratings growth
Baseline captured. Growth appears after the crawler observes a changed rating count.
Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.
Price tracking
Price intelligence
First snapshot captured. The trend line starts after the next crawler price observation.
- First observed Aug 24, 2026 · 8:53 AM Free
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