Oto Diary

One Sound, One Day

Free · In‑App Purchases

Record 10 seconds of today's world. A year from now, it arrives as a Time Capsule — a quiet gift from your past self. Birdsong, laughter, rain. A new kind of diary. Sound Diary is a simple audio journal — record 10 to 60 seconds of your daily world and let it become a gift to your future self. ■ A Time Capsule, One Year Later Every recording you make today will reappear exactly one year from now as a Time Capsule. The birds, the laughter, the rain — moments you forgot you kept. Words can't capture everything, but sound can. ■ Just Record. That's It. Press and hold the vintage cassette reel to start recording. Add a title, pick your mood, and save. No complex setup, no accounts, no cloud required. ■ Moods & Calendar Tag each recording with one of five moods: Calm, Happy, Tired, Tender, or Wonder. Browse past recordings in the Calendar view, or zoom out with the Year View to see your entire year at a glance. Premium users get a color-coded mood heatmap across both views. ■ Build Your Streak Record every day to grow your streak. The longer you keep going, the more future gifts you're leaving for yourself. ■ Fully Offline & Private All recordings stay on your device. Nothing is uploaded to any server. Your sounds belong to you alone. Every feature works without an internet connection.

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· Added Year View — see all 12 months of recordings at a glance · Added onboarding screens for new users · Added countdown to next Time Capsule opening · Added iPad and iPhone Duo support

Version 1.3

The developer, torankirite, 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 indicated that this app doesn’t support certain accessibility features. Learn More about the accessibility features.

    Information

    Seller
    torankirite
    Size
    1.6 MB
    Category
    Lifestyle
    Compatibility
    Requires iOS 16.0 or later.
    • iPhone
      Requires iOS 16.0 or later.
    • iPad
      Requires iPadOS 16.0 or later.
    Languages
    English and Japanese
    Age Rating
    4+
    In-App Purchases
    Yes
    Copyright
    © 2026, Torankirite
  • Developer Website
  • Privacy Policy

    • More by torankirite

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