SPK-ToolBox app icon

Apps Like SPK-ToolBox for iPhone and iPad

by REDOUANE ABDELOUARIT★ 0.00 ratingsUtilitiesFreeData updated 2026-09-06

Ranked alternatives

Showing 161–180 of 1,000 ranked alternatives.

  1. Calculator # Converter app icon

    Calculator # Converter

    CAT VIET SOFTWARE DEVELOPMENT & MEDIA JSC

    Calculations made simpler than ever before.

    The app offers a scientific calculator with over 800 formulas. It includes currency and unit converters, date and time functions, and finance tools.

    ★ 4.370 ratingsUtilitiesFreeData updated 2026-09-25
  2. Beam Calculator app icon

    Beam Calculator

    V PUGAZHENTHI

    Calculate parameters and convert units

    Calculate parameters and convert units between metric and imperial systems. Access tools for critical bending moment, maximum stress, and deflection. Input loads and dimensions to determine structural properties.

    ★ 4.012 ratingsUtilities$2.99Data updated 2026-09-10
  3. Periodic Table: 2025 Chemistry app icon

    Periodic Table: 2025 Chemistry

    Ali Umer

    Explore elements, view details, organize data

    Access detailed information about each element, including atomic number, weight, and symbol. Tap elements to view properties and history. Organize elements in rows and columns. Save notes and bookmark elements for quick reference.

    ★ 4.652 ratingsEducationFreeData updated 2026-09-06
  4. HandyChem app icon

    HandyChem

    CINDURA, LLC

    Search chemicals, calculate molar mass, access periodic

    Chemical SDS Search Tool: Search for chemicals and retrieve SDS information for over 2,400 substances. View safety data including hazards, handling, and disposal instructions.

    ★ 4.86 ratingsEducationFreeData updated 2026-09-27
  5. EduCalc app icon

    EduCalc

    William Jockusch

    Solve equations and graph functions

    Scientific calculator allows complex equation solving, graphing in portrait and landscape modes, and polynomial root finding up to 10th degree. Adjust font sizes and graph line widths. Solve systems of equations and matrices.

    ★ 4.734 ratingsEducationFreeData updated 2026-09-10
  6. myConvert – Currency & Units app icon

    myConvert – Currency & Units

    Lu A Oo

    Convert units with one tap

    Convert units across 77 categories with over 1000 options. Perform multiple conversions on one screen. Add custom units and categories. Use built-in calculator and numeric keyboard. Convert complex measurements like height and weight between systems.

    ★ 4.976 ratingsTravel$2.99Data updated 2026-11-12
  7. Quick Conversion Units app icon

    Quick Conversion Units

    bader alshammari

    Convert instantly in one screen

    For Oilfield allows users to convert within one screen. It supports 19 categories including area, density, and pressure. Users can switch between and view factors directly.

    ★ 5.01 ratingsEducation$4.99Data updated 2026-09-11
  8. Ad-Free Unit Converter app icon

    Ad-Free Unit Converter

    William Jockusch

    Simple intuitive unit converter app

    The app offers unit conversions for acceleration, angle, area, density, distance, energy, force, mass, power, pressure, speed, temperature, time, and volume. All conversions are performed on a single screen.

    ★ 3.955 ratingsUtilitiesFreeData updated 2026-09-15
  9. Bunker One app icon

    Bunker One

    Steffen Kortegaard

    Look up standards and calculate CCAI numbers

    Look up ISO 8217 standards for marine fuels. Calculate CCAI, cetane index, and deviation. Determine energy and price relations. Blend fuels and perform -related calculations.

    ★ 4.52 ratingsBusinessFreeData updated 2026-09-08
  10. SI To USCS unit Conversion app icon

    SI To USCS unit Conversion

    Muralidhar Shenoy

    Quick unit conversion for engineers students

    The app provides unit conversion for engineering conventions and computations. It covers 18 major categories including mass, length, area, volume, and temperature.

    ★ 5.01 ratingsReferenceFreeData updated 2026-09-26
  11. Air Density Calculator app icon

    Air Density Calculator

    Tan Chia Ling

    Calculate air , temperature, or pressure

    Calculate air , temperature, or pressure with instant results. Copy calculations to other apps. Includes formulas for reference. Supports up to 16 decimal places and various units for each input.

    ★ 3.84 ratingsUtilities$2.99Data updated 2026-09-15
  12. gUnit Lite - Free Currency & Unit Converter (Conversion) app icon

    gUnit Lite - Free Currency & Unit Converter (Conversion)

    Axonic Labs LLC

    Convert units and currencies instantly

    Convert units and currencies with quick searches and customizable favorites. Access essential conversions with a sleek interface. Set preferred units and categories for easy access. Perform fast conversions without additional steps.

    ★ 4.773 ratingsUtilitiesFreeData updated 2026-09-08
  13. HVAC Pipe Sizer - Steam app icon

    HVAC Pipe Sizer - Steam

    Carmel Software Corporation

    Size steam pipe systems quickly and easily.

    The app sizes simple steam pipe systems using user-inputted properties. It includes a steam table calculator and an HVAC Equipment Locator.

    ★ 0.00 ratingsUtilities$6.99Data updated 2026-09-12
  14. P-T Calculator app icon

    P-T Calculator

    National Refrigerants, Inc.

    Calculate pressure and temperature

    Calculate pressure and temperature values for refrigerants. Input pressure or temperature to automatically compute the other. Display superheat and subcool values. Show saturated vapor and liquid values for blends. Switch between refrigerant types.

    ★ 4.852 ratingsReferenceFreeData updated 2026-09-13
  15. HVAC Refrigerant PT app icon

    HVAC Refrigerant PT

    Cyberprodigy LLC

    HVAC/R pressure-temperature reference tool.

    The app provides pressure-temperature reference data for 55 refrigerants, including PT charts and superheat/subcooling calculations. It offers detailed refrigerant information and works offline without requiring an account or ads.

    ★ 4.864 ratingsUtilities$6.99Data updated 2026-10-13

How we rank alternatives

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