It`s time to admit, that in the era of electric cars, computers, and phones, people begin to forget what the world was like without apps and technology. It’s hard to imagine, but people have recently reached the point that now you can not only make calls on the phone but use it like a real computer with a bunch of functions and applications. Indeed, a portable computer in your pocket is the most convenient and useful thing for any modern person. The progress that has been made is impressive, but none of this would have been possible if it weren’t for the app developers who have created and perfected services and applications to the ideal level of performance.