# DC Circuit Builder vs Exponential Growth Decay PRO

The clearest difference is review sentiment: DC Circuit Builder at 50% against Exponential Growth Decay 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; Exponential Growth Decay 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 | Exponential Growth Decay 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


### Exponential Growth Decay PRO

[App page](https://appshunter.io/ios/app/exponential-growth-decay-pro/id1662901853)

Calculate future values using exponential growth and decay functions. Input starting and resulting values, growth factor, rate, or percentage to find missing variables. Visualize results with graphs and infographics, with step-by-step solutions.

**Highlights:** Calculate growth factor, rate, or percentage, Step-by-step solution display, Graph visualization of functions, Infographic parameter explanation, History of calculations, Support for decimals, fractions, and negative values

**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 Exponential Growth Decay PRO free?

Exponential Growth Decay PRO costs $1.99, with no in-app purchases.

### Do DC Circuit Builder or Exponential Growth Decay PRO have ads?

Neither DC Circuit Builder nor Exponential Growth Decay 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.*