# Resistor Tools vs Circuit Resistance Creator

The clearest difference is in-app purchases: Circuit Resistance Creator at none against Resistor Tools's 1. Circuit Resistance Creator also leads on review sentiment (100% vs 75%) and update cadence (every 3 weeks vs every 2 months). Resistor Tools's advantage is ratings volume (10 vs 3) and iOS requirement (12.0 vs 14.0). On price, rating, ads and device support there is nothing between them.

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

On the App Store both sit at effectively the same score — 5.0 for Resistor Tools against 5.0 for Circuit Resistance Creator. Both are backed by a comparable volume of ratings — 10 and 3 respectively. Written reviews are what separate them: 75% of Resistor Tools's written reviews are positive against 100% of Circuit Resistance Creator's.

Resistor Tools ships an update every 2 months, Circuit Resistance Creator every 3 weeks. The most recent releases landed on September 24, 2026 and June 1, 2026 respectively.

## The numbers

| Metric | Resistor Tools | Circuit Resistance Creator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (10 ratings)](https://appshunter.io/ios/app/resistor-tools/id826045228/reviews) | [5.0 (3 ratings)](https://appshunter.io/ios/app/circuit-resistance-creator/id1475404949/reviews) |
| Number of ratings | **10** | 3 |
| Positive reviews | 75.0% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 4 MB | 15 MB |
| Requires iOS | **12.0** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Siu Yuen Ho](https://appshunter.io/developer/814088527) | [David White](https://appshunter.io/developer/911163945) |

## 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 |


### Circuit Resistance Creator

[App page](https://appshunter.io/ios/app/circuit-resistance-creator/id1475404949)

Calculate equivalent resistance for any resistor circuit. This tool is designed for students, technicians, and engineers, offering high accuracy for voltage, current, and resistance. It's a great way to check homework and perform engineering calculations.

**Highlights:** Equivalent resistance calculation, Supports any resistor circuit, High accuracy displays (6 decimal places), Apply custom circuit voltages, Designed for students and engineers, Homework checking tool

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Resistor Tools free?

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

### Is Circuit Resistance Creator free?

Circuit Resistance Creator is free to download, with no in-app purchases.

### Which has better reviews, Resistor Tools or Circuit Resistance Creator?

Resistor Tools and Circuit Resistance Creator are both rated 5.0 out of 5 on the App Store, from 10 and 3 ratings respectively.

### Do Resistor Tools or Circuit Resistance Creator have ads?

Neither Resistor Tools nor Circuit Resistance Creator shows ads.

### Which is updated more often, Resistor Tools or Circuit Resistance Creator?

Resistor Tools ships an update every 2 months, and Circuit Resistance Creator every 3 weeks. Most recently, Resistor Tools was updated on September 24, 2026 and Circuit Resistance Creator on June 1, 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.*