DrPhos' Kinetics

Reaction Rate Calculator

$0.99 · In‑App Purchases · Designed for iPad

Solve zero, first, and second-order reaction rate problems instantly. Enter concentrations and time to calculate rate constants, half-lives, and more. olve Chemical Kinetics with Confidence The DrPhos Kinetics Tool helps you quickly solve integrated rate law problems for zero, first, and second-order reactions. Whether you’re working on reaction rates, half-life, or concentration over time, this app delivers fast, accurate results. Perfect for high school and college chemistry students, the tool guides you through the logic of each reaction order with a clean, focused interface. Features: • Supports zero, first, and second-order reactions • Calculates rate constants, concentration, time, and half-life • Clean input layout with instant feedback • Great for lab prep, homework, or exam review • Designed for AP Chemistry, General Chemistry, and beyond Use this as a standalone app or unlock it as part of the full DrPhos GenChem Helper suite for a complete chemistry toolkit.

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What’s New • Solve zero, first, and second-order rate laws • Calculate rate constants, time, concentration, and half-life • Clean, student-friendly input and output • Fast, accurate results for chemistry practice and review

The developer, Monte L Helm, 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

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

    • Seller
      • Monte L Helm
    • Size
      • 15.9 MB
    • Category
      • Education
    • Compatibility
      Requires iOS 17.5 or later.
      • iPhone
        Requires iOS 17.5 or later.
      • iPad
        Requires iPadOS 17.5 or later.
      • Mac
        Requires macOS 14.5 or later and a Mac with Apple M1 chip or later.
      • Apple Vision
        Requires visionOS 1.2 or later.
    • Languages
      • English
    • Age Rating
      4+
    • In-App Purchases
      Yes
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    • Copyright
      • © Dr. Phosphorus Presents 2025