# RC Circuit Pro vs Capacitor Calculator

The clearest difference is rating: Capacitor Calculator at 3.8 against RC Circuit Pro's 1.0. Capacitor Calculator also leads on ratings volume (4 vs 1). RC Circuit Pro's advantage is update cadence (every 4 months vs every 29 months) and price ($0.99 vs $2.99). On ads, in-app purchases, monetization model and device support there is nothing between them.

RC Circuit Pro costs $0.99 and Capacitor Calculator $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Capacitor Calculator holds the better App Store score, 3.8 against 1.0. Both are backed by a comparable volume of ratings — 1 and 4 respectively.

RC Circuit Pro ships an update every 4 months, Capacitor Calculator every 29 months. The most recent releases landed on November 4, 2026 and November 2, 2026 respectively.

## The numbers

| Metric | RC Circuit Pro | Capacitor Calculator |
| --- | --- | --- |
| Price | **$0.99** | $2.99 |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/rc-circuit-pro/id824145786/reviews) | **[3.8 (4 ratings)](https://appshunter.io/ios/app/capacitor-calculator/id1366563133/reviews)** |
| Number of ratings | 1 | **4** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 29 months |
| Monetization | Paid | Paid |
| Size | 17 MB | 1 MB |
| Requires iOS | **9.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Siu Yuen Ho](https://appshunter.io/developer/814088527) | [Nitrio](https://appshunter.io/developer/321121189) |

## 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


### Capacitor Calculator

[App page](https://appshunter.io/ios/app/capacitor-calculator/id1366563133)

This utility app calculates the time constant and energy stored in a capacitor. It helps understand the time-delay characteristics of electrical circuits when a voltage is applied.

**Highlights:** Calculate time constant (RC), Calculate energy stored (E), Input voltage, capacitance, and resistance, Understand capacitor charging/discharging, Analyze circuit time-delay

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

**In-app purchases:** none


## Frequently asked questions

### Is RC Circuit Pro free?

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

### Is Capacitor Calculator free?

Capacitor Calculator costs $2.99, with no in-app purchases.

### Which has better reviews, RC Circuit Pro or Capacitor Calculator?

Capacitor Calculator is rated higher. RC Circuit Pro averages 1.0 out of 5 from 1 ratings, while Capacitor Calculator averages 3.8 from 4 ratings.

### Do RC Circuit Pro or Capacitor Calculator have ads?

Neither RC Circuit Pro nor Capacitor Calculator shows ads.

### Which is updated more often, RC Circuit Pro or Capacitor Calculator?

RC Circuit Pro ships an update every 4 months, and Capacitor Calculator every 29 months. Most recently, RC Circuit Pro was updated on November 4, 2026 and Capacitor Calculator on November 2, 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.*