Instrument Toolbox app icon

Apps Like Instrument Toolbox for iPhone and iPad

by 立娜 王★ 0.00 ratingsUtilities$1.99Data updated 2026-09-06

Ranked alternatives

Showing 41–60 of 1,000 ranked alternatives.

  1. Unit Converter Engineering Pro app icon

    Unit Converter Engineering Pro

    Kaiguri Tech Limited

    Convert units across , physics, and math

    Convert units across 35 categories including acceleration, angle, area, specific heat, electric charge, and heat transfer. Input values and select units for instant conversion. Save frequently used conversions for quick access.

    ★ 5.01 ratingsUtilitiesFreeData updated 2026-09-06
  2. PCalc app icon

    PCalc

    TLA Systems Ltd.

    Calculate, convert, and program with precision

    Perform complex calculations with scientific, engineering, and hexadecimal modes. Use RPN and multi-line display. Convert units and access constants. Undo and redo actions. Sync with Apple Watch for on-the-go calculations.

    ★ 4.7776 ratingsUtilities$9.99Data updated 2026-10-24
  3. Quel app icon

    Quel

    Guillermo Alvarado

    ★ 0.00 ratingsProductivityFreeData updated 2026-09-06
  1. Air Products Gas Converter app icon

    Air Products Gas Converter

    Air Products and Chemicals Inc

    Convert industrial gas weight and volume.

    The app converts weight and volume measures for industrial gases and liquefied natural gas. It accounts for molecular weight and density when converting between liquid and gaseous units.

    ★ 5.09 ratingsReferenceFreeData updated 2026-10-04
  2. GasTech Calculator Pro app icon

    GasTech Calculator Pro

    Maksymilian Lopatowski

    Calculate gas volumes and pressures

    Volume to energy converter calculates gas volume to energy with temperature and pressure adjustments. Professional pipe sizing uses BS 6891:2015 standards for accurate sizing. Includes 9+ calculators for gas engineering tasks.

    ★ 0.00 ratingsUtilities$4.99Data updated 2026-09-06
  3. Gas Converter app icon

    Gas Converter

    Linde GmbH

    Convert gas units with precision

    Convert volumetric units to weight-based units for 15 industrial gases. Select gas type, input volume, and choose unit type. View enthalpy, boiling point, and temperature values for 0°C, 15°C, and 20°C.

    ★ 4.7199 ratingsProductivityFreeData updated 2026-09-08
  4. HydroCalc Plus app icon

    HydroCalc Plus

    Transparent Blue Water LLC

    Hydraulic engineering tool for pipe calculations.

    The app calculates pressure losses in piping systems for engineers and contractors. It supports US and SI units, includes a pipe material library, and a fittings database for total system pressure loss calculations.

    ★ 5.01 ratingsProductivity$3.99Data updated 2026-10-06
  5. Duct Calculator Elite app icon

    Duct Calculator Elite

    Cyberprodigy LLC

    Calculate size, velocity, and pressure drop

    ™ lets users input airflow, velocity, or friction to determine size. Calculate pressure drop and flow rate. Input dimensions for custom shapes. Export results and save calculations.

    ★ 4.8234 ratingsUtilities$9.99Data updated 2026-10-07
  6. 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
  7. Electrical Calculator app icon

    Electrical Calculator

    V PUGAZHENTHI

    Calculate values instantly

    Provides tools for and electronics calculations. Users can compute resistance, voltage, current, and power. Includes resistor color code conversion and voltage drop calculations aligned with NEC/IEEE standards. Supports USCS and SI units.

    ★ 4.6462 ratingsUtilities$3.99Data updated 2026-09-08
  8. Pipe Flow Gas Pressure Drop app icon

    Pipe Flow Gas Pressure Drop

    Daxesoft Ltd

    Calculate loss with isothermal equations

    Calculate loss in gas pipelines using compressible isothermal equations. Input parameters to determine friction loss and fitting loss.

    ★ 4.711 ratingsUtilitiesFreeData updated 2026-09-06
  9. 2017 Master Electrician Ref. app icon

    2017 Master Electrician Ref.

    PawEng, LLC

    Access electrical codes and standards

    Access electrical codes and standards for residential, commercial, and industrial applications. Search for wiring diagrams, safety protocols, and equipment specifications. View detailed explanations of electrical systems and components.

    ★ 4.71,266 ratingsProductivity$9.99Data updated 2026-10-24
  10. Converter Plus [paid] app icon

    Converter Plus [paid]

    TranCreative Software

    Convert units, calculate, and edit templates

    Convert units and currencies across hundreds of categories with real-time exchange rates updated every 6 hours. Calculate mortgages, loans, tips, and fuel consumption. Edit, create, or download customizable templates for various conversions.

    ★ 4.7201 ratingsUtilities$1.99Data updated 2026-09-08

How we rank alternatives

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