RC Circuit Pro vs Binary Brain
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
RC Circuit Pro
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.
- 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
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This app is used to calculate the RC charging and RC filter circuit. It is suitable for hobbyist or electronic engineer. Features * Calculate time constant from R, C * Find component value R,C from time constant * Get voltage at time t in RC charging / discharging * Calculate cutoff frequency by R, C * Find component value R,C from cutoff frequency * Save data to CSV files * Upload CSV via AirDrop / iCloud Drive * Support English, German, French, Italian, Spanish, Portuguese, Japanese, Traditional Chinese, Simplified Chinese
Binary Brain
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This is an arbitrary-precision binary calculator for iOS and watchOS. It can add, subtract, multiply, or divide two or more binary numbers. It can operate on very large integers and very small fractional values. This calculator is, by design, very simple. You can use it to explore binary numbers in their most basic form. It operates on binary numbers (positive and negative). Although designed to be simple, it is an excellent educational tool as well. It keeps track of the calculation in order to let the user verify the calculation. It converts automatically and in real time the latest number in decimal and hexadecimal format. It also converts the latest number in IEEE 754 binary32 (Single-precision floating-point format) format (not available in watchOS version). This calculator is able to calculate bitwise AND, OR, NAND, NOR, XOR and XNOR operations. Moreover, it is possible to perform bit shift operations (not available in watchOS version).
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | RC Circuit Pro | Binary Brain |
|---|---|---|
| Price | $0.99 | $0.99 |
| Rating | 1.0 (1 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 4 months — better | Every 38 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod, Apple Watch — better |
| Requires iOS | 9.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 17 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | Siu Yuen Ho | George Chalkiadoudis |
In-app purchases
RC Circuit Pro
No in-app purchases
Binary Brain
No in-app purchases








