OhmPro app icon

Apps Like OhmPro for iPhone and iPad

Calculate voltage, current, and resistance

Calculate electrical values using Ohm’s Law and related formulas. Input voltage, current, or resistance to determine missing variables. Access circuit diagrams and safety guidelines. Convert units between volts, amps, and ohms.

by SAM SHEPPARD★ 0.00 ratingsProductivityFreeData updated 2026-09-06

Ranked alternatives

Showing 41–60 of 1,000 ranked alternatives.

  1. Electrical Formulator app icon

    Electrical Formulator

    Historycentral.com Inc

    Complete electrical calculation tool for professionals.

    The app provides over 100 electrical formulas for calculations and conversions. Users can save, print, or email results and access frequently used formulas.

    ★ 5.01 ratingsProductivityFreeData updated 2026-09-10
  2. Electrodoc Pro app icon

    Electrodoc Pro

    IODEMA SRL

    Lookup resistor values and color codes

    Allows users to calculate resistor values using color codes and SMD codes. It includes tools for Ohm's Law, reactance, resonance, and voltage dividers. Users can determine resistor ratios, series/parallel combinations, and LED resistor needs.

    ★ 4.663 ratingsProductivity$4.99Data updated 2026-09-09
  1. Calculate84 app icon

    Calculate84

    Century Light LLC

    Graph functions and solve equations

    Create and analyze mathematical functions with interactive graphing. Manipulate equations, zoom, and pan graphs. Access a clean interface with logically placed tools. View detailed error messages and scroll through results without navigation clutter.

    ★ 4.852,900 ratingsEducationFreeData updated 2026-09-10
  2. Ultimate Car Audio App app icon

    Ultimate Car Audio App

    Thomas VanSlambrouck

    Wire subwoofers, calculate cone area, suggest amplifier

    Calculate subwoofer voice coil wiring for single, double, and quad configurations. Determine subwoofer cone area. Suggest amplifier power and car electrical system requirements. Include subwoofer box calculators and Ohms Law tools.

    ★ 4.281 ratingsUtilitiesFreeData updated 2026-09-10
  3. Construction Master Pro Calc app icon

    Construction Master Pro Calc

    Calculated Industries, Inc.

    Try before you buy

    Calculate measurements and perform unit conversions for projects. Perform trigonometric calculations and angle measurements. Access a full user guide and use built-in formulas for precise calculations.

    ★ 4.839,684 ratingsUtilitiesFreeData updated 2026-09-08
  4. Calculator # app icon

    Calculator #

    An Truong

    Calculate, graph, and solve equations

    Perform complex calculations with a powerful math core and algebra engine. Display mathematical expressions with proper formatting. Solve equations, graph functions, and convert units. Access scientific, financial, and programming calculators.

    ★ 4.635,938 ratingsUtilitiesFreeData updated 2026-09-08
  5. Electronic Toolbox Pro app icon

    Electronic Toolbox Pro

    Marcus Roskosch

    Edit schematics, calculate values, and test circuits

    Manage components with a database of resistors, capacitors, and diodes. Calculate circuit values using Ohm’s Law and power formulas. Access schematics, datasheets, and component symbols. Convert units and view component ratings.

    ★ 4.7245 ratingsProductivity$12.99Data updated 2026-09-08
  6. Calculator Pro Lite app icon

    Calculator Pro Lite

    Cider Software LLC

    Customize themes and buttons

    Customize appearance with themes, button shapes, and colors. Choose from six layouts and control all visual elements. View input and result simultaneously on dual-line display. Adjust settings for precise calculations.

    ★ 4.63,075 ratingsUtilitiesFreeData updated 2026-09-08
  7. InstElectric Pro - Electricity app icon

    InstElectric Pro - Electricity

    Angel Martinez

    Calculate cable sizes and circuit dimensions

    Calculate electrical circuits with tools for cable sizing, including phase, neutral, and protective conductors. Use criteria based on current capacity, voltage drop, and overcurrent protection.

    ★ 3.01 ratingsProductivity$4.99Data updated 2026-09-06
  8. NCalc Scientific Calculator + app icon

    NCalc Scientific Calculator +

    Tran Duy

    Calculate, graph, convert, solve

    Allows users to perform complex calculations with a natural display that shows expressions as written. It supports fractions, roots, and exponents. The includes a graphing module for visualizing equations.

    ★ 4.711,472 ratingsEducationFreeData updated 2026-09-06

How we rank alternatives

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