# Capacitor Calculator vs Electronic Circuits Calc Pro

The clearest difference is update cadence: Electronic Circuits Calc Pro at every 2 months against Capacitor Calculator's every 29 months. Capacitor Calculator's advantage is price ($2.99 vs $4.99). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Capacitor Calculator costs $2.99 and Electronic Circuits Calc Pro $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Capacitor Calculator ships an update every 29 months, Electronic Circuits Calc Pro every 2 months. Both last shipped on October 27, 2026.

## The numbers

| Metric | Capacitor Calculator | Electronic Circuits Calc Pro |
| --- | --- | --- |
| Price | **$2.99** | $4.99 |
| Rating | **[3.8 (4 ratings)](https://appshunter.io/ios/app/capacitor-calculator/id1366563133/reviews)** | — |
| Number of ratings | **4** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 29 months | **Every 2 months** |
| Monetization | Paid | — |
| Size | 1 MB | 19 MB |
| Requires iOS | 17.6 | **17.0** |
| Devices | iPhone, iPad | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Nitrio](https://appshunter.io/developer/321121189) | [ALG Software Lab](https://appshunter.io/developer/1650561236) |

## What reviewers say

### 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


### Electronic Circuits Calc Pro

[App page](https://appshunter.io/ios/app/electronic-circuits-calc-pro/id1658493129)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Capacitor Calculator free?

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

### Is Electronic Circuits Calc Pro free?

Electronic Circuits Calc Pro costs $4.99, with no in-app purchases.

### Do Capacitor Calculator or Electronic Circuits Calc Pro have ads?

Neither Capacitor Calculator nor Electronic Circuits Calc Pro shows ads.

### Which is updated more often, Capacitor Calculator or Electronic Circuits Calc Pro?

Capacitor Calculator ships an update every 29 months, and Electronic Circuits Calc Pro every 2 months. Most recently, Capacitor Calculator was updated on October 27, 2026 and Electronic Circuits Calc Pro on October 27, 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.*