Why apps are so successful nowadays

If you think about it then you will notice this too that transportation has always been one of the major issues for people all around the world. And with technology this issue has been resolved and at least it has gotten a lot easier to resolve. This is why the idea of a taxi app design has been one of the most successful ideas in app development industry. Taxi booking apps have been really successful all over the world. And the reasons behind it very simple too, these apps have simply made transportation much easier for people around the world. What other reasons might there be?