# RC Circuit Pro vs Binary Brain

The clearest difference is update cadence: RC Circuit Pro at every 4 months against Binary Brain's every 38 months. RC Circuit Pro also leads on iOS requirement (9.0 vs 13.0). On price, ads, in-app purchases and device support there is nothing between them.

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

RC Circuit Pro ships an update every 4 months, Binary Brain every 38 months. The most recent releases landed on June 4, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | RC Circuit Pro | Binary Brain |
| --- | --- | --- |
| Price | $0.99 | $0.99 |
| 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** | Every 38 months |
| Monetization | Paid | — |
| Size | 17 MB | 6 MB |
| Requires iOS | **9.0** | 13.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Siu Yuen Ho](https://appshunter.io/developer/814088527) | [George Chalkiadoudis](https://appshunter.io/developer/1040522966) |

## 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


### Binary Brain

[App page](https://appshunter.io/ios/app/binary-brain/id1040522967)

**Features:** macOS Compatibility, Apple Watch app, 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 Binary Brain free?

Binary Brain costs $0.99, with no in-app purchases.

### Do RC Circuit Pro or Binary Brain have ads?

Neither RC Circuit Pro nor Binary Brain shows ads.

### Which is updated more often, RC Circuit Pro or Binary Brain?

RC Circuit Pro ships an update every 4 months, and Binary Brain every 38 months. Most recently, RC Circuit Pro was updated on June 4, 2026 and Binary Brain on September 21, 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.*