# iS7 vs Circuit Resistance Creator

The clearest difference is price: Circuit Resistance Creator at Free against iS7's $14.99. Circuit Resistance Creator also leads on in-app purchases (none vs 1) and update cadence (every 3 weeks vs every 4 months). On ads, device support and iOS requirement there is nothing between them.

Circuit Resistance Creator is free to download; iS7 costs $14.99 up front. iS7 sells 1 one-off in-app purchase. Circuit Resistance Creator asks for nothing beyond the download.

iS7 ships an update every 4 months, Circuit Resistance Creator every 3 weeks. The most recent releases landed on October 5, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | iS7 | Circuit Resistance Creator |
| --- | --- | --- |
| Price | $14.99 | **Free** |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/circuit-resistance-creator/id1475404949/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 weeks** |
| Monetization | — | Free |
| Size | 43 MB | 15 MB |
| Requires iOS | 15.0 | **14.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Carlo Trotti](https://appshunter.io/developer/594070838) | [David White](https://appshunter.io/developer/911163945) |

## What reviewers say

### iS7

[App page](https://appshunter.io/ios/app/is7/id594070835)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Alarms | $2.99 | 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 iS7 free?

iS7 costs $14.99, and also offers in-app purchases.

### Is Circuit Resistance Creator free?

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

### Do iS7 or Circuit Resistance Creator have ads?

Neither iS7 nor Circuit Resistance Creator shows ads.

### Which is updated more often, iS7 or Circuit Resistance Creator?

iS7 ships an update every 4 months, and Circuit Resistance Creator every 3 weeks. Most recently, iS7 was updated on October 5, 2026 and Circuit Resistance Creator on September 26, 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.*