9 + 10 = 21 ? You Stupid . The Idiot and moron Test from the Famous Vine at App Store analyse

App power index: 170 (based on ranks around App Stores today)
Games Entertainment Puzzle Trivia
Developer: MOHAMMED KARIM METCHAT
Price: 0 free
Current version: 1.0, last update: 7 years ago
First release : 24 Mar 2016
App size: 13.05 Mb
4.2 ( 3712 ratings )
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Estimation application downloads and cost

> 3.74k
Monthly downloads
~ $ 1.53k
Estimation App Cost


Are you stupid or smart?

Now you can prove it by answering math questions like the kid in the famous vine.

The app has all the sounds of the famous vine.

Plays the "21" sound every time the answer is 21.

Try to find how 10 + 9 = 21 ?

Please share your scores with friends and prove that you are indeed smart.
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# Term Store county Place Priority
1 noscope Portugal 20 ⭐️⭐️⭐️⭐️
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
iPhone4, 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,