If you are a modern person using normal apps, it will definitely turn to regular messaging apps like Messenger (Facebook), Direct (Instagram) and WhatsApp,… They have contributed to making the world connect more neatly and quickly. As such, users can contact many friends around the globe freely and for free. It makes this world more connected and closer. But according to the development trend, they will undoubtedly be old, and the descendants will be born continuously, just waiting for the day to be used by humans only. This is an inevitable trend in the world.