Money is a very big problem. Because everyone needs it for move their life. The fake peoples make black money by illegal activities. So our Prime Minister Narendra Modi takes a crucial decision on this issue. He recently( November 8, 2016) announced that Rs. 500 and Rs. 1000 currency notes
are terminated(also called demonetization) and he introduce new Rs. 2000 and Rs. 500 notes. This issue was highly affected peoples all over India. The people lined up in long ATM and bank queues to withdraw, exchange, and deposit money. The debit card, credit cards, online banking are also available in everywhere. But the poor peoples are not aware of this new technologies so this decision negatively affected them.
But now the newly launched Rs. 500 and Rs. 2000 currencies raised the worries about authentication.
Today people's use apps for every kind of works. An app known as Keynote app is viral in social media. The app used to check the currency is genuine or not. But the fact is now the Keynote app, made by Barra Skull Studios, the original augmented reality Modi Keynote app is not available on Google Play. And huge prank Android apps rise in the Google play store having this same name and it makes confusions in common people. The Modi Keynote app claimed to check whether currency notes are genuine by using the phone's camera to scan the note.
The app will show a video of Prime Minister Narendra Modi's speech about black money if it is genuine, if it doesn't show anything the Currency is not genuine or it was the older not. The app makes use of smartphone's camera, and it uses basic scanning tools of smartphones to recognize the differences between real and fake. The developers of the Modi's Keynote app is not associated with Government of India. These pieces of information are clearly mentioned on their Google play listing page. Also mentioned it is a prank app in its title and it's just for fun.
I conclude that, Now, The Modi's Keynote app is no longer available. You can check it by click here. And spreading lots of duplicate apps in Google play. I also include the reference link of this topic here