Greenheck Toolbox app icon

Apps Like Greenheck Toolbox for iPhone and iPad

Calculate fan laws and size ducts

Fan Law Calculator allows users to input rpm, cfm, static pressure, and horsepower. Modifying one value recalculates the others. Ductulator helps size HVAC ducts by inputting shape, dimensions, air temperature, elevation, and roughness.

by Greenheck Fan Corporation★ 3.03 ratingsUtilitiesFreeData updated 2026-09-08

Greenheck Toolbox screenshots

Ranked alternatives

Showing 21–40 of 1,000 ranked alternatives.

  1. DuctSizer app icon

    DuctSizer

    MULBERRYSOFT COMPANY LIMITED

    Calculate duct sizes with finger slide

    Calculate duct sizes quickly with finger sliding for precise measurements. Display equivalent round and rectangular dimensions. Support IP and SI unit conversions. Perform accurate calculations for efficient system design.

    ★ 0.00 ratingsUtilities$4.99Data updated 2026-09-06
  2. Thermaflex Duct Calculator app icon

    Thermaflex Duct Calculator

    Gastite Products LLC

    Calculate Thermaflex duct size easily.

    The app calculates the smallest Thermaflex duct size for HVAC installations. Users input project volume and friction loss to determine system velocity and the appropriate duct size.

    ★ 2.01 ratingsUtilitiesFreeData updated 2026-10-17
  3. CalcEngineer app icon

    CalcEngineer

    Justin Bush

    Calculate CFM, size compressors, analyze pressure drops

    Calculate CFM requirements for air actuators with real-time results. Size compressors and air receiver tanks based on system needs. Analyze pressure drops and optimize pneumatic systems with engineering-grade calculations.

    ★ 5.02 ratingsProductivityFreeData updated 2026-09-06
  1. ACCA DuctWheel app icon

    ACCA DuctWheel

    Air Conditioning Contractors of America

    HVAC duct sizing the easy way.

    The app provides HVAC duct sizing using ACCA's Manual D, the ANSI standard for residential duct design. It offers features like zooming, locking the wheel, and taking snapshots for reference.

    ★ 3.313 ratingsUtilities$24.99Data updated 2026-09-18
  2. Fan Law Calculator app icon

    Fan Law Calculator

    Pheinex, LLC

    Calculate fan performance changes

    Calculate performance changes based on airflow, rpm, pressure, and current. Input values to get real-time updates. Adjust variables to estimate new system performance metrics.

    ★ 5.04 ratingsProductivity$9.99Data updated 2026-09-11
  3. WinFab - Sheet Metal Ductulator app icon

    WinFab - Sheet Metal Ductulator

    pasquale dipaola

    Calculate duct sizes and dimensions

    Calculate duct sizes based on airflow requirements and space constraints. Input dimensions and airflow rates. Generate reports with material estimates and installation guidelines. Export data for sharing or record-keeping.

    ★ 4.86 ratingsBusiness$3.99Data updated 2026-10-24
  4. HVAC & Sheet Metal Calculator app icon

    HVAC & Sheet Metal Calculator

    Calculated Industries, Inc.

    Calculate duct offsets and angles

    Performs X, Y, R radius calculations and theta measurements. It includes -specific functions for ducting offsets and angle computations. Features dimensional math, geometry, and trigonometry tools for precise construction calculations.

    ★ 4.955 ratingsUtilitiesFreeData updated 2026-09-06
  5. HVAC Toolkit app icon

    HVAC Toolkit

    Carmel Software Corporation

    Track equipment and PT charts

    Provides access to multiple specialized tools for professionals. Users can locate equipment, read PT charts, calculate refrigerant charges, size ducts, estimate quick loads, and analyze psychrometric data.

    ★ 5.02 ratingsProductivity$23.99Data updated 2026-09-08
  6. CE HVAC Pro+ app icon

    CE HVAC Pro+

    Watsco, Inc.

    Check warranty, order status, and tech specs

    Check warranty details, inventory availability, order status, and technical manuals for products. Access tech specifications and order history. Receive support and track business growth tools.

    ★ 4.71,577 ratingsProductivityFreeData updated 2026-09-08
  7. HVACR Check & Charge app icon

    HVACR Check & Charge

    Copeland LP

    Calculate refrigerant charges instantly

    Calculate refrigerant charges for systems using built-in formulas. Input system parameters to determine correct levels for R-22, R-410A, R-32, and other refrigerants. Save and export calculation results for record-keeping.

    ★ 4.817,232 ratingsReferenceFreeData updated 2026-09-08
  8. Fraction Calculator Plus app icon

    Fraction Calculator Plus

    Tue Nguyen Minh

    Solve fractions with mixed number input

    Solve math problems with three keypads for easy mixed number input. Calculate multiple fractions simultaneously. Syncs with iOS devices for optimal performance.

    ★ 4.73,986 ratingsUtilitiesFreeData updated 2026-09-14
  9. Physics Toolbox Sensor Suite app icon

    Physics Toolbox Sensor Suite

    Chrystian Vieyra

    Measure, record, and analyze data

    Measure acceleration, orientation, and motion with built-in sensors. Record and analyze real-time data for experiments. Detect and generate sound tones. Visualize audio waveforms. Export measurements and graphs for scientific use.

    ★ 4.71,779 ratingsUtilitiesFreeData updated 2026-09-11
  10. Comfort by Mitsubishi Electric app icon

    Comfort by Mitsubishi Electric

    Mitsubishi Electric US, INC.

    Monitor and control home climate remotely

    Monitor and control mini-split heating and cooling systems remotely. Adjust temperature, fan speed, and vane direction. Set schedules, receive alerts, and view system status. Lock and unlock devices. Manage multiple units from a single interface.

    ★ 4.28,463 ratingsLifestyleFreeData updated 2026-09-10
  11. Toolbox™ app icon

    Toolbox™

    Tue Nguyen Minh

    Edit files, manage data, and organize tasks

    Manage files with drag-and-drop organization. Access a flashlight with adjustable brightness. Use a calculator, note taker, and screen recorder. Includes calendar, timer, and widget tools. Sync data across devices.

    ★ 4.74,293 ratingsUtilities$1.99Data updated 2026-09-08
  12. Measure Master Pro Calculator app icon

    Measure Master Pro Calculator

    Calculated Industries, Inc.

    Solve U.S. and metric unit conversions.

    The app converts U.S. and metric units for measurements, including linear, area, and volume dimensions.

    ★ 4.94,284 ratingsUtilitiesFreeData updated 2026-09-16

How we rank alternatives

Apps are ranked by functional similarity, category fit, rating confidence, and popularity.