Units & Constants in hand Free at App Store analyse

App power index: 100 (based on ranks around App Stores today)
Utilities Education
Developer: Jian Lin
Price: 0 free
Current version: 1.2.3, last update: 7 years ago
First release : 16 Sep 2010
App size: 1014.41 Kb
4.0 ( 8760 ratings )
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Estimation application downloads and cost

> 2.2k
Monthly downloads
~ $ 900
Estimation App Cost


A simple and convenient unit convert with constant lists. Get conversions for all units simultaneously, and use entire display height to show information.

Features (some applicable to full version):

• Constant lists including physical, chemical and nature constants.

• Convert simultaneously all units of the same type.

• Use the entire height of ipad display to show units. • Pop-up number keyboard only shows up when needed.

• Spectroscopy units are also included other than commonly used units, enable the conversion between wavelength, wavenumber, photon energy, and light frequency.

• If you find any bugs/issues, or have any suggestions, please feel free to tell me in your comments or email to the support: [email protected] Your comments are pre will be seriously considered in future updates.
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Available in countries
Country Price
Canada free
China free
France free
Germany free
Italy free
Netherlands free
Portugal free
Spain free
Poland free
UK free
India free
Japan free
Poland free
Russia free
Turkey free
USA free
Korea, Republic Of free
Ukraine free
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,