210+ iOS apps curated and reviewed
Every iPhone needs a few good resistor calculator apps. We benchmark 210+ of them on App Store rating, freshness, and pricing, then surface the standouts so you don't have to scroll the App Store yourself.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 |  | Free | 4.9★ (60) | No | No | Jul 2026 |
| 2 |  | Free | 5.0★ (5) | Yes | No | May 2026 |
| 3 |  | Free | — | No | No | May 2026 |
| 4 |  | Free | 4.7★ (1.4K) | No | Yes | Jul 2026 |
| 5 |  | Free | 4.7★ (1.3K) | Yes | Yes | Jul 2026 |
| 6 |  | Free | 3.6★ (27) | Yes | No | Jun 2026 |
| 7 |  | Free | 4.6★ (22) | No | Yes | Jul 2026 |
| 8 |  | Free | 5.0★ (1) | Yes | Yes | Jul 2026 |
Easily determine the resistance value of electronic components. Simply select the number of color bands on your resistor and input the colors one by one to instantly get the resistance and tolerance. This tool simplifies a common electronics task.
This utility helps you determine the resistance value of resistors by interpreting their colored bands. It supports 3, 4, 5, and 6 band resistors, visually displaying your selections and the calculated resistance and tolerance.
This comprehensive toolkit offers over 160 electronic applications, calculators, and reference tools for engineers, students, and hobbyists. It features a multi-functional keyboard, color code tools, audio scope, frequency generator, and component references with datasheet access. The app supports real-time circuit simulations and includes a file manager for saving 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.
Easily determine the resistance value of electronic components using their color bands. This reference tool supports both 4 and 5-band resistors, making it ideal for makers, engineers, and students working with electronics projects.
Easily calculate resistor resistance, tolerance, and temperature coefficients. Supports 4, 5, and 6 band codes with a user-friendly interface for electronics enthusiasts.
This tool simplifies resistor calculations for electronics enthusiasts, students, and professionals. It accurately decodes resistor color codes and performs series/parallel calculations for complex circuit analysis. Avoid manual errors and streamline your electronics projects.
Easily calculate resistor values and tolerance using color codes. Simply select the colors for each band, and the app instantly displays the resistance in ohms. Save your results with screenshots for future reference.
This app provides three specialized calculators for parallel electrical circuits: resistance, inductance, and capacitance. It allows for easy input of values, unit customization, and delivers instant, accurate results for engineers and students.
This app provides a comprehensive suite of calculators and reference tools for electronics enthusiasts and professionals. It includes features for component identification, circuit calculations, and electrical property analysis, aiding in both study and practical work.
Quickly calculate resistor values from color bands or SMD codes, and vice versa. This tool is ideal for electronics enthusiasts, students, and DIYers working with 4, 5, or 6-band resistors and various SMD codes. It functions offline and requires no registration.
This multi-function calculator offers basic to advanced scientific and algebraic computations. It includes features like handwriting recognition, equation solvers, and 2D graphing, making it suitable for students and professionals. In-app purchases unlock advanced capabilities.
Instantly calculate resistor resistance values from color codes (3-6 bands). Includes Ohm's Law and Watt's Law calculators for voltage, current, and power. Ideal for electronics enthusiasts and professionals.
Calculate the correct series resistor needed to safely power light-emitting diodes. Input supply voltage, LED voltage drop, current, and the number of LEDs to find the required resistor value and wattage.
This app provides a comprehensive suite of tools and calculators for electronics engineers, students, and hobbyists. It includes numerous calculators for resistors, LEDs, capacitors, Ohm's law, and more, alongside useful tables and unit converters.