Comparison

RF vs CCircuitCalc

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

RF

This app provides over 90 specialized tools for high-frequency electronics, catering to RF professionals, radio amateurs, and students. It offers calculations for PCB traces, filters, impedance, and more, with ongoing updates and new features planned.

Highlights
  • PCB Trace Width and Impedance
  • LC/L/T/Pi Match Calculation
  • Coax Cable Calculations
  • Amplifier and Attenuator Cascade
  • SWR/Reflection/Return Loss Conversion
  • Filter Design (Butterworth, Chebyshev)
  • RF Units Conversion
Read full description

Specialized on high frequency electronics for RF professionals, radio amateurs and students. RF-Toolbox is based on the popular Electronic Toolbox by Marcus Roskosch. This app contains some of the common tools of Electronic Toolbox but contains a wide range of additional tools, specialized for high frequency electronics, RF professionals, radio amateurs and students. Currently RF-Toolbox consists of more than 90 tools and like Electronic Toolbox, there are more to come over the time. Feature list: ■ PCB Trace Width (Internal and external Traces) ■ PCB Trace Resistance ■ PCB Trace Impedance (various trace types e.g. Microstrip, embedded Microstrip, Symmetric and Asymetric Stripline, Wire Microchip, Wire Stripline, Edge Coupled Microstrip and Stripline) PCB Crosstalk (Microstrip and Stripline) ■ LC L/T/Pi Match calculation ■ Coax Cable calculation (Standard and individual Types) ■ Amplifier and Attenuator cascade calculation ■ SWR / Reflection / Return loss conversion ■ Power Divider (Branchline, Ratrace and Wilkinson) ■ Capacitor Plate calculation ■ RLC Parallel, Series and Circuit calculation ■ Noise Figure conversion ■ Skin Depth calculation (various materials from Aluminum to Silver) ■ Butterworth Filter (also with plot of filter chart) ■ Chebyshev Filter (also with plot of filter chart) ■ R-C, L-C, R-L High/Low/Band-Pass Filter ■ RF Units conversion (quick conversion of frequently used units) ■ Air coil inductance calculation ■ Resistors, Capacitors, Inductors in Parallel / Series And there is much more... ■ Aktive Filter calculation tool ■ Antenna calculation tool ■ Delta Star calculation ■ Cable length / ampacity tool ■ PTC / NTC Temperature Resistance conversion ■ AC Ohms law tool ■ Zener diode circuit calculation ■ Constant current source tool ■ ASCII Table ■ Desktop calculator ■ Resistor/Capacitor/Inductor combinations tool ■ 4-20mA conversion tool ■ Passive cooling calculator ■ Audio Oscilloscope Please check out more screen shots on my website (WEBSITE Link on the left side). If you have questions, please feel free to contact me by using the Support button here, inside the App or on my website. Thank you! Marcus Roskosch

About

CCircuitCalc

Features
Read full description

This application is intend for engineers and students who are wasting time for designing electric and electronic circuits. The standard capacitance values based on E-series numbers are outputted in inputting necessary conditions such as combined capacitance. Features The calculable circuits are as follows: - Series Circuits - Parallel Circuits In the Series Circuits and Parallel Circuits, divided capacitance values are calculated in entering a combined capacitance value into an input box. Calculated capacitance values are displayed with the following E-series number specified either. E6, E12, E24 This application can calculate current and power of each capacitor on entered ESR (Equivalent Series Resistance) values. Attention Because standard capacitors are used and precision of calculation is ensured, the following restrictions are set up. - Range of capacitance value: 1pF to 100µF - Range of capacitance ratio: 0.1 to 10

Screenshots

RF4 screens
CCircuitCalc4 screens

Verdict

The call

The clearest difference is update cadence: RF at every 4 months against CCircuitCalc's every 40 months. RF also leads on iOS requirement (11.1 vs 14.0). CCircuitCalc's advantage is price ($1.99 vs $7.99). On 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

CostPrice · In-app purchases · Ads · Monetization

RF costs $7.99 and CCircuitCalc $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

RF ships an update every 4 months, CCircuitCalc every 40 months. The most recent releases landed on September 22, 2026 and September 13, 2026 respectively.

Scorecard3 real differences · 7 level
RF versus CCircuitCalc: the parameters behind the verdict, then further details
ParameterRFCCircuitCalc
Price$7.99$1.99 — better
Rating4.9 (22 ratings) — better—
Positive reviews91.1% of reviews—
Number of ratings22 — better—
Update frequencyEvery 4 months — betterEvery 40 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS11.1 — better14.0
Further details — not scored
Size92 MB3 MB
Age rating4+4+
DeveloperMarcus RoskoschTAKAHIKO FUKUYAMA

In-app purchases

None

RF

No in-app purchases

None

CCircuitCalc

No in-app purchases

Questions

Is RF free?
RF costs $7.99, with no in-app purchases.
Is CCircuitCalc free?
CCircuitCalc costs $1.99, with no in-app purchases.
Do RF or CCircuitCalc have ads?
Neither RF nor CCircuitCalc shows ads.
Which is updated more often, RF or CCircuitCalc?
RF ships an update every 4 months, and CCircuitCalc every 40 months. Most recently, RF was updated on September 22, 2026 and CCircuitCalc on September 13, 2026.

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