RF Link Calc vs Inductance Calculation
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
RF Link Calc
This tool helps radio engineers calculate RF link characteristics, including wireless internet links. It computes maximum distance, required transmitter power, or gain margin by inputting various parameters. It also calculates EIRP, ERP, and field strength in multiple units.
- RF link modeling
- Wireless internet link calculations
- Maximum distance computation
- Transmitter power calculation
- Gain margin calculation
- EIRP/ERP calculator
- Field strength calculator
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RFLinkCalc is a numerical calculation tool for radio engineers. It models the characteristics of an RF link, including Wireless Internet (WiFi) links. You can compute the maximum distance, required transmitter power level, or gain margin. You enter in all of the following values (except what you are trying to calculate) and RFLinkCalc does the rest! Frequency in MHz Transmitter Power in dBm Transmitter Antenna Gain in dBi Transmitter Cable Loss in dB Distance in miles or kilometers Receiver Sensitivity in dBm Receiver Antenna Gain in dBi Receiver Cable Loss in dB Gain Margin in dB The Free Space Loss and Received Signal values are also calculated. The EIRP/ERP Calculator computes the EIRP (Effective Isotropic Radiated Power) and ERP (Effective Radiated Power) in both watts and dBm from the transmitter power and antenna gain. The field strength in dBuV/m is also computed for distances of 3 and 10 meters. The Field Strength Calculator converts between the following units: V/m (volts per meter) dBuV/m (dB relative to one microvolt per meter) dBuA/m (dB relative to one microamo per meter) pT (pico Tesla) dBpT (dB relative to one pico tesla) Tesla Gauss A/m (amperes per meter) mW/cm² (milliwatts per square centimeter) W/m² (watts per square meter)
Inductance Calculation
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The program is designed to calculate inductors, rings and rods.
Screenshots
Verdict
The clearest difference is update cadence: Inductance Calculation at every 20 months against RF Link Calc's every 40 months. Inductance Calculation also leads on price ($0.99 vs $2.99). RF Link Calc's advantage is iOS requirement (9.0 vs 13.0). 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
RF Link Calc costs $2.99 and Inductance Calculation $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
RF Link Calc ships an update every 40 months, Inductance Calculation every 20 months. The most recent releases landed on August 12, 2026 and August 29, 2026 respectively.
| Parameter | RF Link Calc | Inductance Calculation |
|---|---|---|
| Price | $2.99 | $0.99 — better |
| Rating | 2.3 (3 ratings) — better | — |
| Positive reviews | 20.0% of reviews | — |
| Number of ratings | 3 — better | — |
| Update frequency | Every 40 months | Every 20 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 9.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 4 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Black Cat Systems | Timur Isaev |
In-app purchases
RF Link Calc
No in-app purchases
Inductance Calculation
No in-app purchases
