Fibs and Primes at App Store analyse

App power index: 100 (based on ranks around App Stores today)
Utilities Education
Developer: Gage Swenson
Price: 0 free
Current version: 1.0.2+3, last update: 1 year ago
First release : 03 Jul 2022
App size: 40.14 Mb
4.6 ( 496 ratings )
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Estimation application downloads and cost

> 2.2k
Monthly downloads
~ $ 900
Estimation App Cost


Fibs and primes is a free, ad-free and open source app featuring a lazy list of either the Fibonacci or Prime Number sequences. A lazy list is a list whose members arent calculated until viewed; scroll through the list indefinitely to see the sequence until the app crashes!

The Fibonacci sequence is the set of numbers beginning with {0,1}, and the next number in the sequence is the sum of the previous two numbers. In math, this is defined as (for all Int n >= 0):

fibs 0 = 0
fibs 1 = 1
fibs n = fibs (n-1) + fibs (n-2)

Prime numbers are whole numbers greater than 1 whose only two whole factors are 1 and itself. There is no clear cut equation to derive the prime numbers, but the procedure to check whether the next whole number is prime is to see if it is divisible by any lesser prime factors.
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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
UK free
India free
Japan free
Korea, Republic Of free
Poland free
Russia free
Turkey free
USA free
Ukraine free
Available for devices
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,