Tree Felling Cut Calculator

Notch, Hinge & Escape Route

$1.99 · Designed for iPad. Not verified for macOS.

Tree felling calculator with safety assessment. About to drop a leaning tree and need to know your notch depth, hinge thickness, and whether the lean angle makes it too dangerous? This calculator gives you the numbers before you start the saw. Enter tree DBH, height, lean angle, lean direction, desired fell direction, and wood type. Get precise felling parameters and a safety risk assessment instantly. WHAT YOU GET: - Notch depth range (min and max) - Hinge thickness and width - Back cut height guidance - Lean correction angle - Felling radius - Safety risk level (low, moderate, high) - Two escape routes based on fell direction COMPASS ANALYSIS: Compares lean direction against desired fell direction to calculate correction angle and risk level. Flags high-risk situations where lean opposes the fell. WOOD TYPES: Softwood and hardwood, each affecting hinge behavior. Works completely offline. No account required. Built for loggers, arborists, and forestry workers who need safe, accurate felling parameters before every cut.

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Version 1.0.3

The developer, Shanghai Sheyuan Network Technology Co., Ltd., 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.

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    Accessibility

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

    Information

    Seller
    Shanghai Sheyuan Network Technology Co., Ltd.
    Size
    990.2 KB
    Category
    Utilities
    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.
    • Apple Vision
      Requires visionOS 1.0 or later.
    Languages
    English
    Age Rating
    4+
    Copyright
    © 2026 Sheyuan Inc.
  • Developer Website
  • Privacy Policy

    • Supports

    • Family Sharing

      Up to six family members can use this app with Family Sharing enabled.

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