The number in using the online chat apps keeps on growing at a rapid rate. It was 1.82 billion in 2014 and at present, it is 2.01 billion. Anticipating it to be 2.48 billion by 2021. This boosts the chance for entrepreneurs to incline towards online chat app business. Facebook and WhatsApp dominate this landscape. You can also have your Chat app also carve out a niche. So why hassle about what will work? And whatnot? Use a WhatsApp clone to build your instant online chat app.