249+ iOS apps curated and reviewed
Every iPhone needs a few good resistor calculator apps. We benchmark 249+ 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 | Oct 2026 | |
| 2 |  | Free | 5.0★ (5) | Yes | No | Oct 2026 | |
| 3 |  | Free | — | — | No | Aug 2026 | |
| 4 |  | Free | 3.6★ (27) | No | No | Sep 2026 | |
| 5 |  | Free | — | No | No | May 2026 | |
| 6 |  | Free | — | No | No | May 2026 | |
| 7 |  | Free | 3.6★ (5) | Yes | No | May 2026 | |
| 8 |  | Free | — | No | Yes | Oct 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.
