App for creating sense of scarcity, like on bookingcom by Adi Pirke

Hello all,

I am a software developer and I need input about an app for Shopify that I’m working on.

What do you think about an app for Shopify that would do similar as Booking.com’s feature for creating scarcity?

For example:

The idea here is to boost sales by letting customer know that there are other potential buyers currently viewing that product. Of course other info can be shown like quantity remaining, last purchase etc.

It works for renting but my concern is how would this work for shops that sell digital or physical products. I know it doesn’t directly solve any problem but would shop owners pay small amount for this app, like $10/month, if it does indeed increase sales?

What do you guys think?

Thanks.