iResistors app icon

Apps Like iResistors for iPhone and iPad

Learn basic electronics with colors.

The app allows users to swipe on colored bands on a resistor. Users will see colors changing and the final value in Ohms will be displayed.

by Gian Enrico Conti★ 5.01 ratingsEducation$0.99Data updated 2026-09-10

iResistors screenshots

Ranked alternatives

Showing 1–20 of 1,000 ranked alternatives.

  1. Electronics Toolkit! app icon

    Electronics Toolkit!

    Electronial

    Calculate resistor values by color

    Toolkit provides resistor calculations based on color codes or SMD values. It includes an LED resistor calculator and parallel resistor tools. Users can reference electronic components and formulas for design and troubleshooting.

    ★ 4.3531 ratingsEducationFreeData updated 2026-09-06
  2. Resistor Color Code Calc Lite app icon

    Resistor Color Code Calc Lite

    Murat Yasin YAZDIRAN

    Decode colors and see resistance value

    Decode bands by selecting colors to determine resistance and tolerance. Supports 4-band resistors. Provides accurate calculations. Features a clean interface and works offline.

    ★ 0.00 ratingsUtilitiesFreeData updated 2026-09-06
  3. 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
  1. Resistor color code calc app icon

    Resistor color code calc

    Seong Eon Kim

    Calculate value by bands

    Calculator determines resistance value based on colored bands. Users select band count and for each band. The displays the resistance value and visual representation of selected colors. Helps configure electronics projects.

    ★ 5.05 ratingsUtilitiesFreeData updated 2026-09-06
  2. Resistance Color Calculator app icon

    Resistance Color Calculator

    Fabian Schiller

    Select resistor colors and get value instantly

    Determine resistor values by selecting ring colors and number of rings. Choose orientation with the larger gap on the right. Receive value, tolerance, and other details.

    ★ 4.983 ratingsUtilitiesFreeData updated 2026-09-06
  3. Electronics Engineer Helper app icon

    Electronics Engineer Helper

    Rostyslav Dovhaliuk

    Search datasheets and calculate resistor values

    Datasheet search allows users to find electronic components. Resistor color codes and markings are decoded for 4, 5, and 6 band codes. Electronic symbols are displayed according to IEC 60617, IEEE 315, and GOST standards.

    ★ 4.8435 ratingsProductivityFreeData updated 2026-09-09
  4. Resistor Calculator 4-Band app icon

    Resistor Calculator 4-Band

    Max Kievits

    Calculate values instantly

    Calculate values by selecting color bands. Display resistance, tolerance, and temperature coefficient. Visualize bands with interactive color selection.

    ★ 0.00 ratingsUtilitiesFreeData updated 2026-09-06
  5. Electronics Reference Toolkit app icon

    Electronics Reference Toolkit

    Ha Do Thi Thu

    Calculate resistors, voltage, and capacitance

    ElecKit provides tools for calculations. Users can calculate resistor values with 4/5 band codes and tolerance. It includes Ohm’s Law functions for voltage, current, resistance, and power.

    ★ 4.98 ratingsUtilitiesFreeData updated 2026-09-06
  6. Circuit Playground app icon

    Circuit Playground

    Adafruit Industries LLC

    Calculate component values and resistor codes

    Calculate component values for Op Amp, 555, RC Filter, and Resistor Divider circuits. Decode resistor and capacitor codes. Compute power, resistance, current, and voltage using Ohm's Law and Power Calculators.

    ★ 4.319 ratingsUtilities$2.99Data updated 2026-09-08
  7. Electronics Handbook app icon

    Electronics Handbook

    Keysight Technologies, Inc

    Access circuit data and formulas

    Resistor Band Converter allows users to build resistors by selecting color bands and displays the resistance value. It also identifies color bands based on resistance input.

    ★ 3.24 ratingsEducationFreeData updated 2026-09-08
  8. 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 2026-09-10
  9. Resistor color barcode app icon

    Resistor color barcode

    Arkadiusz Fryszkowski

    Scan barcodes, select colors, calculate resistance

    Calculate values using colors. Select bands for 4, 5, or 6 band resistors. Switch modes by swiping the screen. Display numerical value and tolerance.

    ★ 0.00 ratingsUtilitiesFreeData updated 2026-09-06
  10. Electrical Calculator Plus app icon

    Electrical Calculator Plus

    Calc Hub, LLC

    Calculate voltage, current, and power

    Calculate properties using Ohm's Law, current, power, voltage, resistance, and horsepower formulas for DC and AC circuits. Convert units between volts, amps, watts, and ohms. Determine power factor and RMS voltage. Estimate voltage drop in systems.

    ★ 4.625 ratingsUtilitiesFreeData updated 2026-09-06

How we rank alternatives

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