Comparison

RF vs RF Path

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

RF Path

Calculate radio frequency propagation loss using various models like Irregular Terrain, Okumura-Hata, and COST-231. Supports area and point-to-point predictions, with results exportable via email or social media.

Highlights
  • Multiple propagation models (Irregular Terrain, Okumura-Hata, COST-231)
  • Area Prediction mode
  • Point-to-Point prediction mode
  • Elevation profile display
  • Results export (CSV)
  • Save to iCloud
  • Share to social media
Features
Read full description

RF Path provides propagation loss calculations for radio frequencies (RF) between 20 MHz and 20 GHz using either the Irregular Terrain model, Okumura-Hata model, COST-231 Hata Extension model, or the COST-231 Walfish-Ikegami model. The calculations are based on both electromagnetic theory and the statistical analysis of terrain characteristics to calculate the degradation of the RF wave as a function of distance and the variability of the RF wave with respect to time and space. The Irregular Terrain Model has two different prediction models. One is the Area Prediction mode which calculates propagation losses over an area where the exact terrain parameters are not known, but approximated using terrain roughness, environmental parameters and statistical parameters. The second is a point-to-point mode where specific latitude/longitude pair values are entered for both transmitter and receiver. Environmental parameters and statistical parameters are also used in this prediction mode. The results may be saved to iCloud, emailed, or posted to Facebook or Twitter. The results are in CSV format. In the Area Prediction mode a table along with a graph shows the path loss over the distance entered into the settings. The graph is viewed by rotating the device once the results table is shown. In the Point-To-Point Prediction mode a table along with a graph shows the path loss and elevation profile of the RF path.

Screenshots

RF4 screens
RF Path4 screens

Verdict

The call

The clearest difference is rating: RF at 4.9 against RF Path's 3.5. RF also leads on review sentiment (91% vs 50%) and ratings volume (22 vs 4). RF Path's advantage is price ($2.99 vs $7.99) and chart position (#165 vs unranked). On update cadence, ads, in-app purchases and monetization model 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 RF Path $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

RF holds the better App Store score, 4.9 against 3.5. That said, the two scores are not equally well evidenced: RF has 22 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 91% of RF's written reviews are positive against 50% of RF Path's.

UpkeepUpdate frequency

RF ships an update every 4 months, RF Path every 5 months. The most recent releases landed on September 22, 2026 and September 21, 2026 respectively.

Scorecard6 real differences · 5 level
RF versus RF Path: the parameters behind the verdict, then further details
ParameterRFRF Path
Price$7.99$2.99 — better
Rating4.9 (22 ratings) — better3.5 (4 ratings)
Positive reviews91.1% of reviews — better50.0% of reviews
Number of ratings22 — better4
Update frequencyEvery 4 months — betterEvery 5 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
Best chart rank—#165 — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod, Mac — better
Requires iOS11.1 — better13.0
Further details — not scored
Size92 MB15 MB
Age rating4+4+
DeveloperMarcus RoskoschTom Doherty

Customer experience

RF

All ratings22 ratings
Positive95.5%
Neutral0.0%
Negative4.5%
Written reviews45 reviews
Positive91.1%
Neutral4.4%
Negative4.4%

RF Path

All ratings4 ratings
Positive50.0%
Neutral25.0%
Negative25.0%
Written reviews4 reviews
Positive50.0%
Neutral25.0%
Negative25.0%

In-app purchases

None

RF

No in-app purchases

None

RF Path

No in-app purchases

Questions

Is RF free?
RF costs $7.99, with no in-app purchases.
Is RF Path free?
RF Path costs $2.99, with no in-app purchases.
Which has better reviews, RF or RF Path?
RF is rated higher. RF averages 4.9 out of 5 from 22 ratings, while RF Path averages 3.5 from 4 ratings.
Do RF or RF Path have ads?
Neither RF nor RF Path shows ads.
Which is updated more often, RF or RF Path?
RF ships an update every 4 months, and RF Path every 5 months. Most recently, RF was updated on September 22, 2026 and RF Path on September 21, 2026.

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