Spot Spray Tank Mix Calculator

Herbicide & Pesticide Rates

Free · In‑App Purchases

Lawn weeds, garden pests, pasture brush — turn any label rate into the exact amount for your tank. Metric or imperial. Works offline. Enter your tank size and label rate—Spot Spray calculates exact amounts in seconds, whether the label shows oz/acre, g/ha, or a % solution. Works for herbicides, pesticides, fungicides, fertilizers, adjuvants, surfactants, and other products. Works offline Single- or multi-ingredient recipes Save, print, and share as PDF iCloud sync across iPhone, iPad, and Mac

Ratings & Reviews

  • 5.0
    out of 5
    3 Ratings

Updated Age Ratings about Social Media.

Version 4.1

The developer, William Keene, 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 indicated that this app supports the following accessibility features. Learn More

    • Supported Features

      • VoiceOver

      • Voice Control

      • Larger Text

      • Dark Interface

      • Differentiate Without Color Alone

      • Sufficient Contrast

    Information

    Seller
    • William Keene
    Size
    • 4.3 MB
    Category
    • Utilities
    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.
    Languages
    • English
    Age Rating
    4+
    In-App Purchases
    Yes
    Copyright
    • © 2026 William Keene
  • 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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