250+ iOS apps curated and reviewed
Looking for free resistor code calculator apps? 19 of our 250+ tracked titles are free to download — no subscription, no trial. The rest are premium picks worth paying for.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 |  | Free | 4.9★ (60) | No | No | Aug 2026 |
| 2 |  | Free | 3.6★ (27) | Yes | No | Jun 2026 |
| 3 |  | Free | 4.3★ (556) | Yes | Yes | Aug 2026 |
| 4 |  | Free | — | No | No | Aug 2026 |
| 5 |  | Free | — | Yes | No | Jul 2026 |
| 6 |  | Free | 5.0★ (5) | Yes | No | Aug 2026 |
| 7 |  | Free | 4.7★ (1.4K) | No | Yes | Aug 2026 |
| 8 |  | Free | 5.0★ (1) | No | Yes | May 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.
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.
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.
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.
Instantly decode resistor color bands, calculate exact values, and convert SMD resistor markings. This app provides essential tools for electronics students, technicians, and hobbyists with a clean interface and fast processing.
Instantly decode resistor color bands to find resistance, tolerance, and TCR. Also calculates series/parallel resistance and voltage dividers. Supports E-series validation and multiple languages.
Decode SMD resistors with this practical tool. It supports three-digit, four-digit, and EIA-96 encoded resistor values, providing quick and accurate identification.
Instantly identify and calculate resistor values using your iPhone camera. This tool eliminates the need for manual color band reading and charts, offering quick results for engineers, hobbyists, and students. Save your scans and organize them into projects for efficient workflow.
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.
Build and simulate electronic circuits with dynamic animations of voltage, current, and charge. Adjust parameters in real-time and generate input signals with your finger. Explore a vast library of components and community designs.
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.
Quickly identify the value of resistors using their color bands. This utility tool simplifies electronics calculations for hobbyists and professionals alike.
This tool helps you find the closest standard resistor value by combining two standard resistors in series or parallel. It supports E12 and E24 resistor series for precise calculations.