iChromatic at App Store analyse

App power index: 100 (based on ranks around App Stores today)
Music Education
Developer: HotPaw Productions
Price: 0 free
Current version: 1.9.3, last update: 1 year ago
First release : 21 Feb 2009
App size: 1.08 Mb
4.4 ( 7664 ratings )
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Estimation application downloads and cost

> 2.2k
Monthly downloads
~ $ 900
Estimation App Cost


The HotPaw iChromatic Strobe Tuner uses the built-in microphone on your iPhone to allow you to tune a musical instrument rapidly and precisely via an animated visual display.

For your iPad, please see the iChromatic Strobe Tuner HD. For guitar tuning, please see the HotPaw inTuna Strobe Guitar Tuner. Both of these apps are also here in the iOS app store.

iChromatic includes both a frequency readout and 3 highly accurate and responsive waterfall strobe panes which allow extremely precise tuning. When the waveform patterns line up vertically as well as stop moving sideways in the strobe panes, this indicates that the input pitch (or a strong harmonic of the pitch) matches the frequency of the nearest equal temperament note.

With the waterfall strobe tuning window, even very slight differences in frequency between the pitch detected and the target perfect pitch will cause the abstract waveform to waver or move sideways as it cascades down the strobe window. iChromatic also includes a pitch frequency readout in Hz and cents. Configuration options include a Concert A reference frequency adjustment in both Hz and Cents.

Please try the Free inTuna A440 app, also in the iOS App store, before purchasing iChromatic, to see if you appreciate the advantages of using a strobe tuner.

Tuning range using the built-in iPhone microphone is from 2 octaves above middle-C to 2 octaves below.
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Available in countries
Country Price
Canada 24.99 CAD
China 148 CNY
France 22.99 EUR
Germany 22.99 EUR
Italy 22.99 EUR
Netherlands 22.99 EUR
Portugal 22.99 EUR
Spain 22.99 EUR
Poland 21.99 EUR
UK 19.99 GBP
India 1999 INR
Japan 3000 JPY
Korea, Republic Of 29000 KRW
Poland 99.99 PLN
Russia 1790 RUB
Turkey 599.99 TRY
USA 19.99 USD
Korea, Republic Of 21.99 USD
Ukraine 22.99 USD
Available for devices
iPhone3GS, iPhone4, 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, iPadMini5, iPadMini5Cellular, iPadAir3, iPadAir3Cellular, iPodTouchSeventhGen, iPhone11, iPhone11Pro, iPadSeventhGen, iPadSeventhGenCellular, iPhone11ProMax, iPhoneSESecondGen, iPadProSecondGen, iPadProSecondGenCellular, iPadProFourthGen, iPadProFourthGenCellular,