Comparison

EIRP Calculator vs Frequency Conversion

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

Head to head
About

EIRP Calculator

Features
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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)

About

Frequency Conversion

Features
Read full description

Frequency Converter is a fast, practical tool for converting frequency units and understanding wave measurements with clarity. Whether you work with audio, radio, electronics, telecommunications, physics, engineering, or education, this app helps you calculate and compare frequency values in seconds. Convert between common frequency units including Hz, kHz, MHz, GHz, and THz, and view related wave information such as wavelength and period where applicable. The clean interface is designed for quick input, easy reading, and smooth everyday use, making it useful for students, technicians, radio enthusiasts, engineers, teachers, and anyone who needs reliable frequency calculations on iPhone. Frequency Converter is built to make technical conversions simple. Enter a value, choose your units, and instantly see the converted result. Use it when studying wave behavior, checking signal ranges, comparing audio frequencies, reviewing RF bands, or working through science and electronics problems. The app also includes helpful reference content so you can better understand frequency ranges and their real-world meaning. Key features include: โ€ข Convert frequency values across Hz, kHz, MHz, GHz, and THz โ€ข Calculate related wave properties such as wavelength and period โ€ข Simple, readable conversion results โ€ข Conversion history for reviewing recent calculations โ€ข Reference information for common frequency ranges โ€ข Clean design for students, engineers, hobbyists, and professionals โ€ข Useful for audio, radio, wireless, electronics, physics, and telecom work โ€ข Supports quick calculations without unnecessary complexity Frequency Converter is ideal for learning, field work, lab use, classroom exercises, and everyday technical reference. From low-frequency audio signals to high-frequency wireless and electromagnetic waves, the app gives you a convenient way to move between units and understand the numbers behind wave behavior. Download Frequency Converter to make frequency, wavelength, and period calculations faster, clearer, and easier to manage. Thanks for your support and do visit nitrio.com for more apps for your iOS devices.

Screenshots

EIRP Calculator3 screens
Frequency Conversion4 screens

Verdict

The call

The clearest difference is price: EIRP Calculator at Free against Frequency Conversion's $2.99. Frequency Conversion's advantage is update cadence (every 22 months vs every 129 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

EIRP Calculator is free to download; Frequency Conversion costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

EIRP Calculator ships an update every 129 months, Frequency Conversion every 22 months. The most recent releases landed on September 13, 2026 and September 11, 2026 respectively.

Scorecard2 real differences ยท 4 level
EIRP Calculator versus Frequency Conversion: the parameters behind the verdict, then further details
ParameterEIRP CalculatorFrequency Conversion
PriceFree โ€” better$2.99
Update frequencyEvery 129 monthsEvery 22 months โ€” better
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPadiPhone, iPad, iPod โ€” better
Requires iOS17.5 โ€” better17.6
Further details โ€” not scored
Size0 MB2 MB
Age rating4+4+
DeveloperPulsely ConsultingHeng Jia Liang

In-app purchases

None

EIRP Calculator

No in-app purchases

None

Frequency Conversion

No in-app purchases

Questions

Is EIRP Calculator free?
EIRP Calculator is free to download, with no in-app purchases.
Is Frequency Conversion free?
Frequency Conversion costs $2.99, with no in-app purchases.
Do EIRP Calculator or Frequency Conversion have ads?
Neither EIRP Calculator nor Frequency Conversion shows ads.
Which is updated more often, EIRP Calculator or Frequency Conversion?
EIRP Calculator ships an update every 129 months, and Frequency Conversion every 22 months. Most recently, EIRP Calculator was updated on September 13, 2026 and Frequency Conversion on September 11, 2026.

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