# Simple Circuit Builder vs BrewShelf

Simple Circuit Builder and BrewShelf are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Simple Circuit Builder ships an update every 3 weeks, BrewShelf every 5 weeks. The most recent releases landed on September 13, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Simple Circuit Builder | BrewShelf |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (28 ratings)](https://appshunter.io/ios/app/simple-circuit-builder/id1294616098/reviews)** | — |
| Number of ratings | **28** | — |
| Positive reviews | 52.6% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 5 weeks |
| Monetization | Free | — |
| Size | 14 MB | 143 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [David White](https://appshunter.io/developer/911163945) | [ARLOOPA Inc.](https://appshunter.io/developer/935637248) |

## What reviewers say

### Simple Circuit Builder

[App page](https://appshunter.io/ios/app/simple-circuit-builder/id1294616098)

This virtual lab offers a hands-on experience for learning about resistors and circuit resistance. Easily build and test series and parallel circuits, measure voltage and current, and understand the impact of component changes in real-time.

**Highlights:** Build circuits with up to eight components, Five component types, Virtual volt and amp meters, Adjustable resistor and voltage values, Real-time circuit analysis, Demonstrates 'Opens' and 'Shorts'

**Features:** macOS Compatibility

**In-app purchases:** none


### BrewShelf

[App page](https://appshunter.io/ios/app/brewshelf/id6744311716)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Simple Circuit Builder free?

Simple Circuit Builder is free to download, with no in-app purchases.

### Is BrewShelf free?

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

### Do Simple Circuit Builder or BrewShelf have ads?

Neither Simple Circuit Builder nor BrewShelf shows ads.

### Which is updated more often, Simple Circuit Builder or BrewShelf?

Simple Circuit Builder ships an update every 3 weeks, and BrewShelf every 5 weeks. Most recently, Simple Circuit Builder was updated on September 13, 2026 and BrewShelf on October 10, 2026.

---

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