SprayMaster: Spray Calculator

Tank Mix, Calibration & Rates

Only for iPhone

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

iPhone

SprayMaster is the fast, no-nonsense calculator for licensed pesticide applicators — ag, turf, ornamental, pest control, and right-of-way. FREE • Tank Mix — turn any label rate (per acre, per 1,000 ft², or per gallon) into exactly how much product goes in the tank, plus acres per tank and whole-job totals. • Mix Ratio — quick dilution for handheld and backpack sprayers, with the equivalent percent solution. PRO • Sprayer Calibration — find your true gallons-per-acre by the nozzle & speed formula or the 1/128-acre catch method (the one on the cert exam). • Rate Converter — lb/acre ↔ oz/1,000 ft², % ↔ oz/gal, and more. • Area / Acreage — size a field from ground measurements. • Calculation history, and no ads. The label is the law. SprayMaster does the arithmetic; you follow the product label, its restrictions, and your state's regulations. It ships no product rates and makes no recommendations. Terms of Use (EULA): https://ghapps1.wordpress.com/terms-condition/ Privacy Policy: https://ghapps1.wordpress.com/privacy-policy/

Ratings & Reviews

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• Bug fixes and performance improvements

Version 1.0.1

The developer, Grima Hdez, 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 Used to Track You

    The following data may be used to track you across apps and websites owned by other companies:

    • Usage Data

  • Data Not Linked to You

    The following data may be collected but it is not linked to your identity:

    • Usage Data

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
  • Grima Hdez
Size
  • 3.5 MB
Category
  • Utilities
Compatibility
Requires iOS 17.0 or later.
  • iPhone
    Requires iOS 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+
In-App Purchases
Yes
  • SprayMaster Pro $39.99
  • Pro Yearly $29.99
  • Pro Weekly $4.99
  • Learn More
Copyright
  • © 2026 Grima Hdez All Rights Reserved.
  • Developer Website
  • Privacy Policy

    • More by Grima Hdez