"Currently, the Tweet Button doesn't really offer anything except display the count of the number of times a URL has been shared on Twitter," Shetty said.

Meanwhile, Hendra Kieran, a system engineer at Affle, maker of the , is also satisfied with the Tweet Button but finds that its rendering and functionality fall short in mobile devices, a in online .

"When it is used to share a tweet, it will take the user to a non-mobile-friendly page in Twitter so users have to zoom in to get a better view of the page," Kieran said.

Twitter didn't respond to requests for comment about the Tweet Button.