# RC Circuit Pro vs Percentage Difference

The clearest difference is price: Percentage Difference at Free against RC Circuit Pro's $0.99. RC Circuit Pro's advantage is iOS requirement (9.0 vs 13.0). On ads, in-app purchases and device support there is nothing between them.

Percentage Difference is free to download; RC Circuit Pro costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | RC Circuit Pro | Percentage Difference |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/rc-circuit-pro/id824145786/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | — |
| Monetization | Paid | — |
| Size | 17 MB | 40 MB |
| Requires iOS | **9.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Siu Yuen Ho](https://appshunter.io/developer/814088527) | [STAGE CODING, Travnik](https://appshunter.io/developer/1637068135) |

## What reviewers say

### RC Circuit Pro

[App page](https://appshunter.io/ios/app/rc-circuit-pro/id824145786)

Calculate RC charging and filter circuits with ease. This tool helps hobbyists and engineers determine time constants, component values, and cutoff frequencies. Save and export your circuit data for further analysis.

**Highlights:** Calculate time constant, Find component values (R, C), Determine voltage at time t, Calculate cutoff frequency, Save data to CSV, Export data via AirDrop/iCloud Drive

**In-app purchases:** none


### Percentage Difference

[App page](https://appshunter.io/ios/app/percentage-difference/id1619680450)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is RC Circuit Pro free?

RC Circuit Pro costs $0.99, with no in-app purchases.

### Is Percentage Difference free?

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

### Do RC Circuit Pro or Percentage Difference have ads?

Neither RC Circuit Pro nor Percentage Difference 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.*