Radio & dB Calc vs EIRP Calculator
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
EIRP Calculator
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EIRP calculator let you calculate the effective transmission power with a given combination of radio transmitter and antenna. Equivalent isotropically radiated power (EIRP) or, alternatively, effective isotropically radiated power is the amount of power that a theoretical isotropic antenna (which evenly distributes power in all directions) would emit to produce the peak power density observed in the direction of maximum antenna gain. (from Wikipedia)
Screenshots
Verdict
The clearest difference is update cadence: Radio & dB Calc at every 5 months against EIRP Calculator's every 129 months. Radio & dB Calc also leads on iOS requirement (8.0 vs 17.5). 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Radio & dB Calc ships an update every 5 months, EIRP Calculator every 129 months. The most recent releases landed on November 1, 2026 and October 26, 2026 respectively.
| Parameter | Radio & dB Calc | EIRP Calculator |
|---|---|---|
| Price | Free | Free |
| Rating | 2.0 (1 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 5 months — better | Every 129 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 8.0 — better | 17.5 |
| Further details — not scored | ||
| Size | 1 MB | 0 MB |
| Age rating | 4+ | 4+ |
| Developer | Dioptase | Pulsely Consulting |
In-app purchases
Radio & dB Calc
No in-app purchases
EIRP Calculator
No in-app purchases
Questions
Is Radio & dB Calc free?
Is EIRP Calculator free?
Do Radio & dB Calc or EIRP Calculator have ads?
Which is updated more often, Radio & dB Calc or EIRP Calculator?
Other comparisons
