Sumipon: Lock Screen To-Do

Quick tasks, red panda stamps

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

Type a task in seconds, see it on your lock screen, and tap to stamp it done. Pon the red panda gives every finished task a red 済 hanko stamp. Works offline. Sumipon puts your to-do list where you already look: the lock screen. Type a short task in seconds. The app opens with the cursor ready, and you can also start from Control Center, the Action button, or Siri ("Add a task"). LOCK SCREEN - Lock screen widgets: a rectangular list with tap-to-stamp, a circular progress ring, and an inline line - A list wallpaper image you can export, or update automatically with a Shortcuts automation (Set Wallpaper) - Optional Live Activity for "today focus" on the lock screen A note on iPhone limits: when the phone is locked, widget buttons work after Face ID unlock. That is an Apple rule, not something an app can change. DONE MEANS DONE Finish a task and Pon the red panda gives it a red 済 hanko stamp. Tasks you finish never come back by mistake. Made a mistake? Undo it. You can also reorder, rename, and delete with undo. The Stamp Book shows what you finished, and Pon levels up as you collect stamps. PRIVATE AND SIMPLE - Works offline - No account, no data collected - English and Japanese FREE TO USE, ONE-TIME UNLOCK The core to-do list and lock screen widgets are free. "Sumipon Pro" is a one-time purchase (no subscription) that unlocks all wallpaper styles, Live Activity, more than one list, and history export.

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The developer, Sang Huynh, 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

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    Information

    Seller
    Sang Huynh
    Size
    23.5 MB
    Category
    Productivity
    Compatibility
    Requires iOS 18.0 or later.
    • iPhone
      Requires iOS 18.0 or later.
    • iPad
      Requires iPadOS 18.0 or later.
    • Mac
      Requires macOS 15.0 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 2.0 or later.
    Languages
    English and Japanese
    Age Rating
    4+
    In-App Purchases
    Yes
    Copyright
    © 2026 Huynh Xuan Sang
  • Developer Website
  • Privacy Policy

    • Supports

    • Family Sharing

      Some in-app purchases and subscriptions may be shareable with your family group when Family Sharing is enabled. Learn More

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