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 41–60 of 1,000 ranked alternatives.

  1. HighLevel app icon

    HighLevel

    Shaun Clark

    Build and manage marketing campaigns

    Manage leads with landing pages, surveys, and forms. Schedule appointments via calendars. Track customer interactions and campaign performance. Integrate with marketing tools and analytics.

    ★ 4.53,689 ratingsBusinessFreeData updated 2026-09-15
  2. CD Calculator Pro app icon

    CD Calculator Pro

    RedTracker LLC

    Calculate CD returns and compare options

    Calculate future CD value by inputting deposit amount, interest rate, and term. Compare growth scenarios and adjust rates to see impact. View results instantly with a simple interface.

    ★ 4.8467 ratingsFinanceFreeData updated 2026-09-16
  1. Southwire® Voltage Drop Calc app icon

    Southwire® Voltage Drop Calc

    Southwire Company

    Calculate and wire size

    Calculate for a specific conductor run or determine wire size based on and current carrying capacity. Limits wire size to and NEC ampacity. Supports AWG and KCMIL sizes only.

    ★ 4.61,480 ratingsUtilitiesFreeData updated 2026-09-08
  2. Ohms Law Calc. app icon

    Ohms Law Calc.

    V PUGAZHENTHI

    Calculate voltage, current, and resistance

    Calculate electrical values using formulas for voltage, current, resistance, power, and more. Determine wire size and voltage drop. Perform transformer and generator calculations. Convert between electrical units.

    ★ 4.71,326 ratingsUtilitiesFreeData updated 2026-09-08
  3. Pipe Trades Pro Calc app icon

    Pipe Trades Pro Calc

    Calculated Industries, Inc.

    Try before you buy with free trial

    Perform length calculations, determine fittings angles, and estimate material requirements. Access schedules, standards, and industry-specific data. Convert units and calculate pressure drops. Save and export calculation results.

    ★ 4.84,282 ratingsUtilitiesFreeData updated 2026-09-08
  4. AspenHome app icon

    AspenHome

    ASPEN APPLIANCE INC

    Control fan speed and set temperature

    Control window fan operations through smart devices. Turn fans on/off, adjust speeds, set temperature between 60F and 80F, control airflow mode, create schedules for multiple functions, and adjust control panel brightness.

    ★ 4.8216 ratingsUtilitiesFreeData updated 2026-09-20
  5. Baker HVAC Pro+ app icon

    Baker HVAC Pro+

    Watsco, Inc.

    View order status, access product info,

    Access product information and tools for /R professionals. View real-time order status. Use a duct calculator to determine size, material, and specifications. Link online account to manage prices, add items to cart, and check inventory.

    ★ 4.9594 ratingsProductivityFreeData updated 2026-09-08
  6. Universal AC Remote Control + app icon

    Universal AC Remote Control +

    JOKOPRO LTD

    AC with your phone

    Air conditioner settings remotely by turning it on or off, adjusting temperature, fan speed, and airflow direction. Manage multiple units and sync with compatible models from various manufacturers.

    ★ 4.72,707 ratingsUtilitiesFreeData updated 2026-09-06
  7. AddNotes app icon

    AddNotes

    Climb App

    Calculate totals from your notes

    Manage and calculate data with notes and a calculator. Input numbers and data items to automatically compute totals. Supports Dynamic Type and is compatible with hardware keyboards.

    ★ 4.8368 ratingsProductivityFreeData updated 2026-09-13
  8. Gravel Calculator Plus app icon

    Gravel Calculator Plus

    Calc Hub, LLC

    Calculate needs in tons, yards, and meters

    Estimate , stone, rock, sand, topsoil, and aggregate needed for projects. Calculate required amounts in tons, cubic yards, and cubic meters. Input dimensions and material type to get accurate estimates.

    ★ 4.82,040 ratingsUtilitiesFreeData updated 2026-09-24
  9. Gemaire HVAC Pro+ app icon

    Gemaire HVAC Pro+

    Watsco, Inc.

    Access product info and tools anytime

    Access product information, pricing, and order status through account linking. View real-time product availability at preferred and nearby branches. Find locations, hours, and contact details. Track order progress and check branch inventory.

    ★ 4.8817 ratingsProductivityFreeData updated 2026-09-08
  10. Electric Toolkit - Calculator app icon

    Electric Toolkit - Calculator

    Cyberprodigy LLC

    Wire diagrams, pinouts, calculate electricity

    Access electrical wiring diagrams for switches, fans, and outlets. Calculate grounding conductor sizes. View diagrams for 3-way switches, 4-way switching, GFCI, and more. Includes NEC 2014 to NEC 2023 standards.

    ★ 4.8289 ratingsUtilities$5.99Data updated 2026-09-08
  11. Bosch Toolbox app icon

    Bosch Toolbox

    Robert Bosch Power Tools GmbH

    Manage tasks, access manuals, track projects

    Manage tools and equipment with inventory tracking and maintenance logs. Access technical manuals and repair guides. View job schedules and estimate costs. Share notes and photos with team members. Sync data across devices for real-time updates.

    ★ 4.7686 ratingsUtilitiesFreeData updated 2026-09-08
  12. Duct Calculator S&P app icon

    Duct Calculator S&P

    S&P SISTEMAS DE VENTILACION SL.

    Calculate diameter and ventilation parameters

    Calculate dimensions by converting circular to rectangular equivalents. Determine ventilation parameters including diameter, airspeed, airflow, and dynamic pressure. Compute pressure drop for straight sections and systems.

    ★ 5.01 ratingsUtilitiesFreeData updated 2026-09-10

How we rank alternatives

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