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 181–200 of 1,000 ranked alternatives.

  1. PDC Bit & Drilling Calculator app icon

    PDC Bit & Drilling Calculator

    zhandos uakanov

    Calculate flow rates and hydraulic horsepower

    Calculate minimum flow rates, bit hydraulic horsepower, jet impact force, and nozzle velocity. Input bit size, pressure drop, fluid density, and flow rate. View detailed results and formulas. Save and export calculations.

    ★ 0.00 ratingsReference$1.99Data updated 2026-09-16
  1. Intapp Time Legacy app icon

    Intapp Time Legacy

    Intapp, Inc

    Mobile time entry for law firms.

    The app provides a mobile solution for law firm personnel to enter and edit time information from any location. It allows users to input fully validated data using intuitive fields, similar to the desktop application.

    ★ 1.947 ratingsProductivityFreeData updated 2026-11-15
  2. ConstructionCalcPro24 app icon

    ConstructionCalcPro24

    Muhammad Atif Javed

    Calculate materials, estimate costs, track projects

    Calculate and estimate construction materials with precise tools for concrete mixing, lumber framing, roofing pitch, flooring layouts, paint coverage, steel weight, electrical load, and HVAC sizing.

    ★ 0.00 ratingsUtilitiesFreeData updated 2026-09-06
  3. Video Toolbox:Player & Editor app icon

    Video Toolbox:Player & Editor

    晓航 郑

    Edit videos, cut clips, reverse playback, add

    Allows users to cut, delete, and reverse clips. Apply real-time beauty filters and crop videos with white space. Rotate, flip, or merge multiple videos. Add music from a library and convert videos to GIF or live photo formats.

    ★ 4.461 ratingsPhoto & VideoFreeData updated 2026-09-14
  4. Flow Rate Help app icon

    Flow Rate Help

    Armchair Engineering

    Calculate , diameter, or velocity

    Calculate fluid rates, pipe diameter, or liquid velocity. Choose units for diameter, velocity, and . Set decimal precision for results. Solve equations for accurate measurements.

    ★ 4.344 ratingsUtilities$0.99Data updated 2026-09-10
  5. Ratio Calculator Total Tool app icon

    Ratio Calculator Total Tool

    SHIGETO TAKAGI

    Calculate ratios and heating time.

    The app calculates ratios and totals from input values. It can also back-calculate ratios from a total and determine heating time based on microwave wattage.

    ★ 4.58 ratingsUtilitiesFreeData updated 2026-10-21
  6. ThreadKing app icon

    ThreadKing

    Motionics, LLC

    Calculate thread sizes and dimensions

    Provides drill and tap size charts for fractional, letter, and wire standards. It calculates drill sizes for cutting and forming taps based on thread percentage. It also computes RPM and feed rates for cutting taps in various materials.

    ★ 4.712 ratingsProductivityFreeData updated 2026-09-10
  7. PPI Calc - DPI Calculator app icon

    PPI Calc - DPI Calculator

    AppNextDoor Labs

    Calculate PPI from screen dimensions and pixels

    Calculate PPI by inputting screen dimensions and pixel count. Explain PPI vs DPI and dot pitch. Provide formulas and resolution categorization. Include definitions and user comments on related terms.

    ★ 4.467 ratingsUtilitiesFreeData updated 2026-09-18
  8. Gas Pipe Sizing Calculator app icon

    Gas Pipe Sizing Calculator

    Connor Kelley

    Calculate gas size based on BTU, length,

    Calculate gas size based on BTU load, length, and gas type (LP or Natural). Input values and select gas type to determine minimum size. Output result for immediate use.

    ★ 4.04 ratingsUtilities$1.99Data updated 2026-09-08
  9. Sales Tax Canada Calculator + app icon

    Sales Tax Canada Calculator +

    Tardent Apps Inc.

    Calculate Canadian sales tax quickly.

    The app calculates Canadian sales tax for any province or territory, including GST, PST, QST, and HST. It features a calculator, supports all currencies, and remembers the last selected province.

    ★ 4.626 ratingsFinanceFreeData updated 2026-09-23
  10. TerriTool: AI Field Sales app icon

    TerriTool: AI Field Sales

    Spencer Kelleher

    Optimize routes in real time

    Optimizes routes for field sales agents in real time. Learns from past trips to suggest efficient paths. Integrates with calendars and maps. Provides estimated travel times and fuel costs.

    ★ 4.935 ratingsBusinessFreeData updated 2026-09-15
  11. SIMpull 600V Calculator app icon

    SIMpull 600V Calculator

    Southwire Company

    Calculate wire pull characteristics and generate NEC®

    The includes multiple calculators for electrical wire pull calculations. Users can input parameters for voltage drop, ground wire sizing, ampacity adjustments, and phase wire attributes. Results are generated according to NEC® standards.

    ★ 4.259 ratingsReferenceFreeData updated 2026-09-08
  12. XLKSJY app icon

    XLKSJY

    NEW MISSION SYSTEMS, INC.

    ★ 0.00 ratingsUtilitiesFreeData updated 2026-09-06

How we rank alternatives

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