Tolerance Master

Based on ISO 286 standards.

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

Tolerance Master is the ultimate companion for mechanical engineers, designers, and manufacturing professionals. Tolerance Master is a professional-grade mechanical tolerance calculator based on GB/T 1800 and ISO 286 standards. Its core features include: real-time tolerance lookup with instant results for any basic size, dynamic tolerance zone visualization that clearly displays fit types (clearance, interference, transition), comprehensive offline database covering the full 0-3150mm size range, and support for both hole and shaft tolerance calculations. The app features a user-friendly interface with intuitive controls, allowing engineers to quickly input dimensions and select tolerance grades. It also provides detailed results including upper/lower deviations, fit type determination, and standard compliance information. With no internet connection required, Tolerance Master is ready whenever and wherever you need it – in the office, on the workshop floor, or during field inspections. Whether you're a seasoned professional or engineering student, this tool simplifies complex tolerance calculations and ensures every design meets industry standards. Get a 3-day free trial, subscribe when it ends. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

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    Information

    Seller
    • 磊 高
    Size
    • 2.6 MB
    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 and Simplified Chinese
    Age Rating
    4+
    In-App Purchases
    Yes
    Copyright
    • © Copyright 2026 Lei Gao
  • 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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