How Many: A Quiz Deck of Numbers in Nature, A Sierra Club deck of Knowledge Cards published by Pomegranate Communications at App Store analyse

App power index: 100 (based on ranks around App Stores today)
Education
Developer: AA+
Price: 0 free
Current version: 1.1, last update: 7 years ago
First release : 31 Aug 2009
App size: 3.65 Mb
4.5 ( 7305 ratings )
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Estimation application downloads and cost

> 2.2k
Monthly downloads
~ $ 900
Estimation App Cost


The ancients argued, or so we are told, about how many angels could dance on the head of a pin. This intriguing application investigates more earthly, and more satisfying, questions. (For one thing, they are answerable.) The urge to enumerate is as strong in Homo sapiens as the imperative to name. Indulging our fondness for tallying, How Many? addresses 48 aspects of animal behavior, earth science, and our doings on the planet in a Q&A format that is a surefire remedy against boredom on (say) the long drive to a trailhead. How many tree species populate the Amazon Basin? How many teeth can be found behind the lips of a great white shark, or a rabbit? How many stomachs does a cow contain? How frequently does a hummingbird flap its wings? Without this deck, you may never know.
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USA 1.99 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,