BasicATTCalc vs World Radio League
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
BasicATTCalc
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Basic Attenuator Calculator (BasicATTCalc) helps you calculate various resistive attenuators which are used in many audio, video and RF circuit design applications. The standard resistance values based on E-series numbers are outputted in inputting necessary conditions such as source impedance, load impedance and attenuation. Features The calculable attenuators and impedance converters are as follows: - Type T - Type Pi (π) - Type H - Type O - Type Bridged T - Type Bridged H - Type L (Impedance converter) - Type U (Impedance converter) Calculated resistance values are displayed with ideal values or the following E-series number specified either. E12, E24, E48, E96, E192 The most suitable values are calculated in selecting priority calculation whether Simple or Precision. - Simple: Perform calculations that the nearest values are derived to desired impedances and attenuation by the simple structure - Precision: Perform calculations that the nearest values are derived to desired impedances and attenuation by consisting of up to 4 resistors per an element In addition to resistance values, this application provides you with input impedance, output impedance and calculated attenuation with mismatch loss. If necessary, it is able to calculate power dissipated by each resistor and parameters such as reflection coefficient, VSWR, return loss and mismatch loss. Attention Because the standard resistors are used, the following restriction is set up. - Range of resistance value: 1Ω ~ 10MΩ (except ideal values)
World Radio League
Log amateur radio contacts on the go without a computer. Supports Parks on the Air activations and general logging. Syncs seamlessly with the website for easy contact management and viewing your profile stats and awards.
- Mobile amateur radio logging
- Parks on the Air activations
- Contact sync with website
- View logging stats and awards
- Real-time spotting page
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Jump the gap and start logging your contacts in the BEST mobile amateur radio logging experience! Start Parks on the Air activations, general logging, and any time you want to start logging contacts without your computer! > Sync your contacts and logbooks between the website and mobile app, making it super easy to manage contacts made on the go > Full support for iOS, iPadOS, and Apple Silicon MacOS > View your profile to see your logging stats and awards > See who's on the air while you're logging with a spotting page
Screenshots
Verdict
The clearest difference is price: World Radio League at Free against BasicATTCalc's $1.99. World Radio League also leads on update cadence (weekly vs every 29 months). On ads, in-app purchases, device support and iOS requirement 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
World Radio League is free to download; BasicATTCalc costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
BasicATTCalc ships an update every 29 months, World Radio League weekly. The most recent releases landed on October 7, 2026 and October 18, 2026 respectively.
| Parameter | BasicATTCalc | World Radio League |
|---|---|---|
| Price | $1.99 | Free — better |
| Rating | — | 4.5 (65 ratings) — better |
| Positive reviews | — | 70.3% of reviews |
| Number of ratings | — | 65 — better |
| Update frequency | Every 29 months | Weekly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 14.5 — better | 15.6 |
| Further details — not scored | ||
| Size | 7 MB | 90 MB |
| Age rating | 4+ | 9+ |
| Developer | TAKAHIKO FUKUYAMA | World Radio League Inc. |
In-app purchases
BasicATTCalc
No in-app purchases
World Radio League
No in-app purchases
Questions
Is BasicATTCalc free?
Is World Radio League free?
Do BasicATTCalc or World Radio League have ads?
Which is updated more often, BasicATTCalc or World Radio League?
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