# iGian vs RC Circuit

The clearest difference is in-app purchases: iGian at none against RC Circuit's 1. On price, update cadence, ads and monetization model there is nothing between them.

Both are free to download. RC Circuit sells 1 one-off in-app purchase. iGian asks for nothing beyond the download.

iGian ships an update every 3 months, RC Circuit every 6 months. The most recent releases landed on September 30, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | iGian | RC Circuit |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.8 (5 ratings)](https://appshunter.io/ios/app/rc-circuit/id824460716/reviews)** |
| Number of ratings | — | **5** |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 6 months |
| Monetization | Free | Free |
| Size | 2 MB | 16 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Gian Vitale Da Rin Vidal](https://appshunter.io/developer/531182825) | [Siu Yuen Ho](https://appshunter.io/developer/814088527) |

## What reviewers say

### iGian

[App page](https://appshunter.io/ios/app/igian/id788293075)

A straightforward calculator employing Reverse Polish Notation (RPN) for efficient calculations. It offers a simple interface for users who prefer this input method. Ideal for quick mathematical operations without complex menus.

**Highlights:** Reverse Polish Notation (RPN) input, Simple and intuitive interface, Efficient calculation method, Designed for quick operations

**Features:** macOS Compatibility

**In-app purchases:** none


### RC Circuit

[App page](https://appshunter.io/ios/app/rc-circuit/id824460716)

Calculate RC charging and filter circuits, including time constants and cutoff frequencies. Find component values from these parameters or get voltage at specific times. Save and share data easily.

**Highlights:** Calculate time constant, Find component values, Get voltage at time t, Calculate cutoff frequency, Save data to CSV, Upload CSV via AirDrop/iCloud Drive, Multi-language support

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Pro features | $0.99 | one-time |


## Frequently asked questions

### Is iGian free?

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

### Is RC Circuit free?

RC Circuit is free to download, with in-app purchases available.

### Do iGian or RC Circuit have ads?

Neither iGian nor RC Circuit shows ads.

### Which is updated more often, iGian or RC Circuit?

iGian ships an update every 3 months, and RC Circuit every 6 months. Most recently, iGian was updated on September 30, 2026 and RC Circuit on October 5, 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.*