PeriCal vs Veil Period & Cycle Tracker

PeriCal is a very simple period calendar which allows you to estimate your next period for the next months and plan accordingly.

Veil is a privacy-first period and cycle tracker. Your health data never leaves your device - no accounts, no servers, no behavioral tracking. Just clean, private cycle tracking that works. TRACK YOUR CYCLE - Periods, flow intensity, symptoms, mood, and notes - Energy, sleep, weight, temperature, water - Contraception tracking: pill (with adherence scoring), ring, hormonal IUD, copper IUD, and implant - log insertions, string checks, and removals - Cervical mucus charting (5-state Billings/Sensiplan) and BBT - Tag entries with custom labels - quick-log from the dashboard SMART PREDICTIONS - Next period, ovulation, and fertile window forecasts - Predictions improve as you log more cycles - Contraception Method-aware - Cycle day and phase shown at a glance BEAUTIFUL CALENDAR - Month and year views with color-coded cycle phases - Inline editing - toggle period days directly on the calendar - Day detail sheet shows everything logged for any date APPOINTMENTS & REMINDERS - Pin doctor visits to your calendar with custom alerts - Recurring reminders for pills, IUD checks, supplements, anything - 3 active reminders free, 15 with Plus - Notifications fire from the device, never from a server DEEP INSIGHTS - Cycle quality score and regularity analysis (computed over natural cycles when on hormonal contraception) - PMDD severity score (DSM-5 weighted, ovulatory cycles only) - Pill adherence headline (28-day rolling % and streak) - Amenorrhea alerts with health guidance - Observed-vs-predicted ovulation (BBT 3-over-6 + peak mucus) - Notes timeline + day viewer VEIL PLUS (OPTIONAL) - Veil Assistant - private, on-device AI that answers from your own cycle data (no servers, no cloud) - Pattern Mirror - symptom correlations by cycle phase - Personalized symptom forecasts based on YOUR history - Cycle History deep-dive with multi-cycle comparison - Long-term trend charts - Health Report PDF for your doctor (with contraception history section) - Full-text search across notes, moods, symptoms, and contraception events - Encrypted auto-backup - Unlimited custom tags - All future premium features PRIVACY BY DESIGN - All health data is stored locally on your device - Encrypted backups (AES-256) - No accounts, no email, no phone number required - Biometric lock (Face ID / Touch ID) and PIN protection - Discreet mode transforms the app into a generic utility - Full data export anytime - your data belongs to you AVAILABLE IN 9 LANGUAGES English, German, Albanian, Spanish, Italian, French, Portuguese, Russian, and Turkish. Subscription auto-renews until cancelled. Cancel anytime in Settings > Subscriptions. See our Terms of Use at https://veiltrack.app/terms and Privacy Policy at https://veiltrack.app/privacy.