Vellum: Period Tracker

Private, offline cycle log

Free · Designed for iPad. Not verified for macOS.

Vellum is a quiet, private almanac for your menstrual cycle. Estimates only - not medical advice, not a contraceptive. Log periods, symptoms, mood, sleep, basal body temperature, and notes in a local database on your device. Vellum has no sign-in, no accounts, no cloud sync, no analytics SDK, no crash reporter, and no ads. Your cycle data stays on your device unless you choose to export or share a backup. WHAT YOU CAN LOG - Flow level, symptoms, mood, energy, sleep hours - Sexual activity, discharge, medications, free-text notes - Basal body temperature in C or F WHAT YOU SEE - Today screen with an interactive ring showing the selected cycle day and estimated phase - Month calendar with logged days and clearly marked estimates - Insights with temperature and cycle-length charts - Cycle history for reviewing and correcting past cycles - Home-screen widget on iOS showing your cycle day and estimated phase ESTIMATES YOU CAN INSPECT Next period, higher-fertility days, and ovulation timing are estimated from your logged history. Calendar estimates may be wrong and do not confirm ovulation. Vellum is for personal awareness, not diagnosis, treatment, or contraception. Consult a qualified clinician before medical or contraceptive decisions. Sources and methodology are available inside the app. LOCAL REMINDERS Period, higher-fertility, ovulation, and daily check-in reminders are scheduled on your device. Turn each on or off individually. APP LOCK Use Face ID, Touch ID, or your device passcode to lock the app. Sensitive content is covered when the app moves to the background. EXPORT AND IMPORT Save a JSON backup or CSV of your logs through the share sheet. JSON backups are validated before restoration. Exported copies remain under your control. SIX LANGUAGES English, Spanish, French, Portuguese, German, and Arabic. No sign-in, no cross-device sync, no HealthKit access, no advertising, and no third-party tracking.

Ratings & Reviews

  • This app hasn’t received enough ratings or reviews to display an overview.

• Browse previous days with the interactive cycle ring and day navigation. • Save your daily check-in without scrolling back through the form. • See clearer summaries for saved temperature, sleep, and other details. • Improved phone layouts, localized navigation, and cycle-history handling.

Version 1.0.2

The developer, youssef fakih, 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
    • youssef fakih
    Size
    • 47.8 MB
    Category
    • Health & Fitness
    Compatibility
    Requires iOS 15.1 or later.
    • iPhone
      Requires iOS 15.1 or later.
    • iPad
      Requires iPadOS 15.1 or later.
    • iPod touch
      Requires iOS 15.1 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
    13+
    • 13+
    • Learn More
    • Infrequent
      Medical Treatment information

      Contains
      Health or Wellness Topics
    Copyright
    • © 2026 AuraByte Studios
  • Developer Website
  • Privacy Policy

    • More by youssef fakih

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