Memento Mori - 死を想え

Days, weeks, full moons left

Free · Designed for iPad. Not verified for macOS.

Time is finite — what gives today its weight. See your remaining days, your life in weeks, and how many more times you'll see your parents, the blossoms, the full moon. "Remember that you too must die." This ancient Roman phrase, "Memento Mori," is not about fearing death — it is a philosophy for living each moment to the fullest. This app makes the time you have left quietly, precisely visible — in days, and in how many more times. REMAINING TIME - Real-time countdown of your remaining days and hours, with your life progress - Full-screen countdown - Week Grid: your whole life, one square per week (swipe the main screen) TIMES LEFT - Full Moon: how many more times will you watch it rise - Count up to five things that matter — seeing your parents, the cherry blossoms - With another person, their remaining life expectancy is estimated from their age or birthday, and the count ends at your final day or theirs, whichever comes first - Tap a count to see exactly how it's calculated ALSO - Share cards: long-press any screen to share it as an image - Home Screen and Lock Screen widgets (remaining days, Week Grid, Full Moon, Year Progress) - Daily reminder, with an option to vary the time each day, and full moon night notifications - My Reminders: set your own personal notifications - Japanese and English support LIFE EXPECTANCY DATA Reference values are based on the average remaining life expectancy for your current age, from Japan's 2025 Abridged Life Tables (Ministry of Health, Labour and Welfare). You can also set your own date freely, and recalculate anytime by opening Final Day in Settings. PRIVACY All data is stored locally on your device. Nothing is ever sent to external servers. No account, no ads. To remember death is not despair. It is a discipline for truly living today.

  • 5.0
    out of 5
    1 Ratings

v3.0.1 — Small housekeeping. Tidied up how the app is presented on the App Store. Nothing has changed inside the app.

The developer, Kohei Masuda, 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

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

    Seller
    • Kohei Masuda
    Size
    • 2.5 MB
    Category
    • Lifestyle
    Compatibility
    Requires iOS 26.2 or later.
    • iPhone
      Requires iOS 26.2 or later.
    • iPad
      Requires iPadOS 26.2 or later.
    • Mac
      Requires macOS 26.2 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 26.2 or later.
    Languages
    • English
    Age Rating
    4+
    Copyright
    • © 2026 PROJEKT2501