I would have to say NO because Twitter's platform is completely different than Instagram's.
Instagram is an app made specifically fore mobile or small portable devices, such as, iPhones, iPads, iPod Touch's, etc., whereas Twitter is also an app made for mobile devices, it's also made to be used from a computer.
Believe it or not, I began my Twitter account just from my PC! Later, I downloaded it to my iPod and you get the story.
So, Twitter and Instagram are both very popular, but are both very popular in two very different ways.