# DC Circuit Builder vs Simple Logarithm PRO

The clearest difference is review sentiment: DC Circuit Builder at 50% against Simple Logarithm PRO's 0%. DC Circuit Builder also leads on price (Free vs $1.99) and iOS requirement (5.1.1 vs 15.0). On ads, in-app purchases and device support there is nothing between them.

DC Circuit Builder is free to download; Simple Logarithm PRO costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | DC Circuit Builder | Simple Logarithm PRO |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | **[2.6 (26 ratings)](https://appshunter.io/ios/app/dc-circuit-builder/id863128050/reviews)** | — |
| Number of ratings | **26** | — |
| Positive reviews | **50.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Monthly |
| Monetization | **Free** | Paid |
| Size | 6 MB | 180 MB |
| Requires iOS | **5.1.1** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Nerd Island Studios, LLC](https://appshunter.io/developer/546699733) | [Glindemann, Sennoun, Langer GbR](https://appshunter.io/developer/1024972809) |

## What reviewers say

### DC Circuit Builder

[App page](https://appshunter.io/ios/app/dc-circuit-builder/id863128050)

Design, build, and test DC circuits with realistic component behavior. Visualize charge flow and power dissipation. Ideal for students and educators to grasp fundamental electrical concepts.

**Highlights:** Design series, parallel, and compound circuits, Visualize charge flow, Realistic voltmeters and ammeters, Voltage displayed on circuit nodes, Bulb brightness indicates power dissipation

**Features:** macOS Compatibility

**In-app purchases:** none


### Simple Logarithm PRO

[App page](https://appshunter.io/ios/app/simple-logarithm-pro/id1662897702)

This app simplifies complex logarithm and exponentiation calculations with step-by-step solutions. It supports various input types, including decimals, fractions, and negative values, and provides a history of all calculations.

**Highlights:** Logarithm and exponentiation modes, Step-by-step solution display, Support for decimals, fractions, and negative values, Calculation history, Transformation between logarithm and exponentiation, Logarithm rules infographic, Solution sharing

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

**In-app purchases:** none


## Frequently asked questions

### Is DC Circuit Builder free?

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

### Is Simple Logarithm PRO free?

Simple Logarithm PRO costs $1.99, with no in-app purchases.

### Do DC Circuit Builder or Simple Logarithm PRO have ads?

Neither DC Circuit Builder nor Simple Logarithm PRO shows ads.

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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.*