OTN - One Time Note

Notes that fade away

Free · In‑App Purchases · Designed for iPad. Not verified for macOS.

OTN applies the mental model of a one-time password to your notes. Every note is born with a lifetime — 10 minutes, an hour, a day, a week — and quietly disappears when its time runs out. Most notes are one-time information: where you parked, a wifi password, today's to-do. They don't deserve permanent storage. OTN is built for exactly this — write it in five seconds, let it go, and never watch your list pile up again. WATCH IT FADE Notes visually age as their time runs out, dimming and blurring until they dissolve. The list itself is the timer. KEEP ONLY WHAT MATTERS Tap a note to Keep it forever, or Release it now. Keeping is a deliberate act, not the default. NOTHING IS LOST BY ACCIDENT Expired and released notes rest unseen in the Archive for a while — then they're gone for good. Restore anything before it vanishes. DESIGNED TO DISAPPEAR A dark, minimal, single-screen interface. No folders, no tabs, no clutter. Choose from three typefaces to make it yours. OTN PRO A single one-time purchase removes ads on iPhone and syncs your notes between iPhone and Mac via iCloud. Nothing piles up. As it should be.

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Notes are now editable — tap a note and choose Edit to fix a typo. Editing never resets the timer. Quick capture from your clipboard: open OTN with copied text and one tap turns it into a new note. Also in this update: • Ad consent options for users in the EEA, with a new "Ad privacy options" entry in Settings • Small fixes and polish

Version 1.0.1

The developer, SeokHui Lee, 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 Used to Track You

    The following data may be used to track you across apps and websites owned by other companies:

    • Location
    • Identifiers
    • Usage Data

  • Data Not Linked to You

    The following data may be collected but it is not linked to your identity:

    • Location
    • Identifiers
    • Usage Data
    • Diagnostics

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
  • SeokHui Lee
Size
  • 6.1 MB
Category
  • Productivity
Compatibility
Requires iOS 17.0 or later.
  • iPhone
    Requires iOS 17.0 or later.
  • iPad
    Requires iPadOS 17.0 or later.
  • Mac
    Requires macOS 14.0 or later and a Mac with Apple M1 chip or later.
Languages
  • English
Age Rating
4+
In-App Purchases
Yes
Copyright
  • © Copyright 2026 Seokhui Lee. All rights reserved.
  • Developer Website
  • Privacy Policy