TaskOutline

Structured Task Planner

Only for iPhone

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

iPhone

TaskOutline is a task management app that helps you organize your work in a clear, hierarchical structure. With a three-level structure — Phase → Task → Subtask — you can break down large goals into manageable steps and keep everything structured. It’s not just another to-do list. It’s a tool designed to help you think and manage your work through structure. Who It’s For • If you feel overwhelmed by too many things to do • If you want to break big goals into smaller, actionable steps • If you want to plan things like study schedules or moving preparation step by step • If you like the idea of WBS-style organization but prefer something simple and easy to use Key Features • Hierarchical project management (Phase / Task / Subtask) • Progress tracking • Due date management • Notes • Drag & drop reordering • Execution mode (focus only on what you need to do now) • Ready-to-use templates to get started quickly Pro Version The free version includes one project. Upgrade to Pro to create unlimited projects. One-time purchase. No subscription. Designed for individuals who want a simple yet structured way to manage projects and tasks.

Ratings & Reviews

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The developer, Takumi Kobayashi, 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
    Takumi Kobayashi
    Size
    971.8 KB
    Category
    Lifestyle
    Compatibility
    Requires iOS 18.5 or later.
    • iPhone
      Requires iOS 18.5 or later.
    • Mac
      Requires macOS 15.5 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 2.5 or later.
    Languages
    English and Japanese
    Age Rating
    4+
    In-App Purchases
    Yes
    Copyright
    © 2026 Takumi Kobayashi
  • Developer Website
  • Privacy Policy

    • More by Takumi Kobayashi

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