iAttenuation at Mac App Store analyse

App power index: 100 (based on ranks around App Stores today)
Utilities Reference
Developer: Black Cat Systems
Price: 0 free
Current version: 3.0, last update: 1 year ago
First release : 21 Feb 2009
App size: 1.4 Mb
4.8 ( 1488 ratings )
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Estimation application downloads and cost

> 2.2k
Monthly downloads
~ $ 900
Estimation App Cost


Passive attenuators are two port / four terminal resistive networks that are designed to reduce (or attenuate, hence their name) the power between a source and load. They can also match the impedance between the source and load. They are used in a variety of audio and radio / RF applications.

iAttenuation calculates resistor values for the following types of attenuator networks:

Tee Network
Pi Network
H (Balanced Tee)
O (Balanced Pi)
Minimum Loss Pad

Just enter in the input and output impedance values, and the desired attenuation, and iAttenuation does the rest!

iAttenuation can also adjust the calculated resistor values to match the nearest standard 1%, 5%, or 10% tolerance values.
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Available in countries
Country Price
Canada 3.99 CAD
China 22 CNY
France 2.99 EUR
Germany 2.99 EUR
Italy 2.99 EUR
Netherlands 2.99 EUR
Portugal 2.99 EUR
Spain 2.99 EUR
Poland 3.49 EUR
UK 2.99 GBP
India 299 INR
Japan 400 JPY
Korea, Republic Of 4400 KRW
Poland 14.99 PLN
Russia 249 RUB
Turkey 99.99 TRY
USA 2.99 USD
Korea, Republic Of 3.29 USD
Ukraine 3.99 USD
Available for devices
iPhoneFirstGen, iPodTouchFirstGen, iPodTouchSecondGen, iPhone3G, iPhone3GS, iPadWifi, iPad3G, iPhone4, iPodTouchThirdGen, iPodTouchFourthGen, iPad2Wifi, iPad23G, iPhone4S, iPadThirdGen, iPadThirdGen4G, iPhone5, iPodTouchFifthGen, iPadFourthGen, iPadFourthGen4G, iPadMini, iPadMini4G, iPhone5c, iPhone5s, iPadAir, iPadAirCellular, iPadMiniRetina, iPadMiniRetinaCellular, iPhone6, iPhone6Plus, iPadAir2, iPadAir2Cellular, iPadMini3, iPadMini3Cellular, iPodTouchSixthGen, iPhone6s, iPhone6sPlus, iPadMini4, iPadMini4Cellular, iPadPro, iPadProCellular, iPadPro97, iPadPro97Cellular, iPhoneSE, iPhone7, iPhone7Plus, iPad611, iPad612, iPad71, iPad72, iPad73, iPad74, iPhone8, iPhone8Plus, iPhoneX, iPad75, iPad76, iPhoneXS, iPhoneXSMax, iPhoneXR, iPad812, iPad834, iPad856, iPad878, Watch4, iPadMini5, iPadMini5Cellular, iPadAir3, iPadAir3Cellular, iPodTouchSeventhGen, iPhone11, iPhone11Pro, Watch5, iPadSeventhGen, iPadSeventhGenCellular, iPhone11ProMax, iPhoneSESecondGen, iPadProSecondGen, iPadProSecondGenCellular, iPadProFourthGen, iPadProFourthGenCellular,