# Resistor Tools vs Capacitor

The clearest difference is in-app purchases: Capacitor at none against Resistor Tools's 1. Capacitor also leads on review sentiment (100% vs 75%). Resistor Tools's advantage is update cadence (every 2 months vs every 40 months) and rating (5.0 vs 4.8). On price, ratings volume, ads and device support there is nothing between them.

Both are free to download. Resistor Tools sells 1 one-off in-app purchase. Capacitor asks for nothing beyond the download.

Resistor Tools holds the better App Store score, 5.0 against 4.8. Both are backed by a comparable volume of ratings — 10 and 10 respectively. Written reviews complicate that: 75% of Resistor Tools's written reviews are positive against 100% of Capacitor's, so the app with the better star average is not the one people write more warmly about.

Resistor Tools ships an update every 2 months, Capacitor every 40 months. The most recent releases landed on September 24, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | Resistor Tools | Capacitor |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (10 ratings)](https://appshunter.io/ios/app/resistor-tools/id826045228/reviews)** | [4.8 (10 ratings)](https://appshunter.io/ios/app/capacitor-converter/id6447107842/reviews) |
| Number of ratings | 10 | 10 |
| Positive reviews | 75.0% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 40 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 4 MB | 8 MB |
| Requires iOS | **12.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Siu Yuen Ho](https://appshunter.io/developer/814088527) | [Gerhard Lentschik](https://appshunter.io/developer/629988041) |

## What reviewers say

### Resistor Tools

[App page](https://appshunter.io/ios/app/resistor-tools/id826045228)

This utility app provides a suite of tools for calculating and determining resistor values. It assists hobbyists and engineers with series, parallel, and voltage divider calculations, as well as inverting amplifier gain.

**Highlights:** Series and parallel resistor calculation, Resistor combination finder, Voltage divider ratio and value calculation, Inverting amplifier gain calculation, Save combinations to CSV

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock pro feature | $0.99 | one-time |


### Capacitor

[App page](https://appshunter.io/ios/app/capacitor-converter/id6447107842)

Easily determine capacitor values from color codes or calculate color codes from values. Supports both standard and SMD capacitors, providing quick and accurate conversions for electronics projects.

**Highlights:** Capacitor color code to value conversion, Value to capacitor color code conversion, SMD capacitor code to value conversion, SMD value to EIA code calculation, Supports standard and SMD capacitors

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Resistor Tools free?

Resistor Tools is free to download, with in-app purchases available.

### Is Capacitor free?

Capacitor is free to download, with no in-app purchases.

### Which has better reviews, Resistor Tools or Capacitor?

Resistor Tools is rated higher. Resistor Tools averages 5.0 out of 5 from 10 ratings, while Capacitor averages 4.8 from 10 ratings.

### Do Resistor Tools or Capacitor have ads?

Neither Resistor Tools nor Capacitor shows ads.

### Which is updated more often, Resistor Tools or Capacitor?

Resistor Tools ships an update every 2 months, and Capacitor every 40 months. Most recently, Resistor Tools was updated on September 24, 2026 and Capacitor on September 9, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*