248+ iOS apps curated and reviewed
The Power Law Calc is the household name in the power law calc, but it's far from the only option. We track 248+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 |  | Free | — | No | Yes | May 2026 |
| 2 |  | Free | 4.7★ (52) | Yes | Yes | Aug 2026 |
| 3 |  | $1.99 | — | No | No | Jun 2026 |
| 4 |  | Free | 5.0★ (2) | No | Yes | Aug 2026 |
| 5 |  | $2.99 | 3.5★ (4) | No | No | Aug 2026 |
| 6 |  | Free | — | No | Yes | May 2026 |
| 7 |  | Free | 4.4★ (26) | No | No | Jul 2026 |
| 8 |  | Free | 4.5★ (2) | No | No | May 2026 |
This utility app quickly calculates voltage, current, resistance, and power using Ohm's and Watt's laws. It's designed for electricians, engineers, and students, offering instant, accurate results with a simple interface. Works offline and is ideal for field calculations or exam preparation.
This tool calculates Ohm's Law for single and three-phase applications using vector calculations for balanced and unbalanced loads. It quickly determines Watts, Volts, Amps, or Ohms, and can back-calculate load resistance. Widget support is included.
Easily calculate electrical values like voltage, current, resistance, and power. Input any two known values, and the app will automatically compute the rest. Supports various units for precise calculations.
Calculate electrical values like current, voltage, resistance, and power using Ohm's Law. Input any two known values to automatically determine the missing one. Ideal for electrical enthusiasts and professionals.
This app calculates electrical parameters based on Ohm's and power laws. Input any two values (voltage, current, resistance, or power) and the app will automatically compute the remaining two. It allows for continuous "what-if" scenarios by locking one parameter and recalculating others.
This app provides a straightforward calculator designed for the electrical industry, offering tools for power and lighting calculations. It helps users determine generator and UPS requirements, convert units, and calculate fuel consumption. Suitable for both professionals and casual users needing electrical calculations.
This utility app calculates voltage, current, resistance, and power using Ohm's Law. Simply input any two values, and the app will compute the remaining two, providing a comprehensive tool for electrical calculations.
This app functions as a scientific calculator, enabling users to input and edit complex formulas with ease. It supports formula history, variable memory, and various number system conversions for accurate calculations.
This app offers a comprehensive suite of 26 electrical and electronics calculators and converters. It helps users compute various electrical properties, including Ohm's Law, current, power, voltage, and resistance. It also features tools for wire ampacity, voltage drop, and LED resistor calculations.
This app provides a comprehensive suite of electrical calculations, including Ohm's Law, voltage drop, wire sizing, and impedance. It also offers numerous converters for various electrical units and parameters, aiding in circuit design and analysis.
This app offers both basic and scientific calculation modes with over 30 scientific operations. It allows for customization of the app's appearance and includes features for note-taking, drawing, and viewing calculation history. It supports high accuracy calculations and nested parentheses.
This app simplifies electrical calculations by accurately computing voltage, current, resistance, and power. It offers a user-friendly interface and step-by-step explanations, making it ideal for students, engineers, and electricians to solve circuit problems efficiently.
This utility app calculates electrical resistance, voltage, and current using Ohm's Law. It provides a quick and easy way to solve electrical formulas for various applications.
Explore mathematical concepts by graphing any equation, from simple lines to complex series. This powerful tool allows for interactive exploration with sliders, data tables, and animations. It also includes a scientific calculator and supports inequalities and accessibility features.
This chemistry calculator simplifies complex gas law calculations, including the ideal gas law and its variations. It also offers an element lookup with electron configuration and energy levels, plus tools for temperature, pressure, and volume conversions and dilution calculations.