Radio & dB Calc vs RF Tools ++
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Radio & dB Calc
This utility app assists radio engineers with common calculations. It allows for adding and subtracting dB values and converting various radio engineering metrics like noise factor and return loss.
- Add/subtract dB values
- Convert Noise Factor
- Convert Equivalent Input Noise Temperature
- Convert Spectral Power Noise Density
- Convert Return Loss
- Convert Reflection Coefficient
- Convert VSWR
- Compute maximum mismatch loss
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Some tools often needed in radio engineering : - add and subtract values in dB unit - convert Noise Factor, Equivalent Input Noise Temperature, Spectral Power Noise Density - convert Return Loss, Reflection Coefficient, VSWR - compute maximum mismatch loss
RF Tools ++
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RF Tools provides essential utilities for RF and link budget calculations including: Antenna Factor, Field Intensity, Phase, Time Delay, Wavelength, Cable Calculator, Cable Loss, Cable K1 K2 estimator, dBm/Watts conversions, dBµA/Amps conversions, dBµV/Volts conversions, Gain conversions, Power conversions, Free Space Loss, VHF/UHF Line of Sight, Fade Margin, Link Margin, Radar Max/Min Range, VSWR/Power/Return Loss Conversions, Radar Equation Solver and several reference items. The cable loss tool includes generic cables and many cables from Andrew, Beiden, Harbour Industries, Huber+Suhner, IW-Microwave, MegaPhase, Micro-Coax, PIC Wire & Cable, Times Microwave and Webro. Calculations are added regularly
Screenshots
Verdict
The clearest difference is price: Radio & dB Calc at Free against RF Tools ++'s $1.99. Radio & dB Calc also leads on iOS requirement (8.0 vs 17.0). RF Tools ++'s advantage is update cadence (every 2 weeks vs every 5 months). 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
Radio & dB Calc is free to download; RF Tools ++ costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Radio & dB Calc ships an update every 5 months, RF Tools ++ every 2 weeks. The most recent releases landed on September 7, 2026 and September 23, 2026 respectively.
| Parameter | Radio & dB Calc | RF Tools ++ |
|---|---|---|
| Price | Free — better | $1.99 |
| Rating | 2.0 (1 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 5 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 8.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 1 MB | 42 MB |
| Age rating | 4+ | 4+ |
| Developer | Dioptase | Jeff Curtis |
In-app purchases
Radio & dB Calc
No in-app purchases
RF Tools ++
No in-app purchases
