At the moment Android is one of the most popular mobile operating systems. That's why finding an app of any kind for her is easy. It is more difficult to choose really important software products from all the possible heap. Useful programs for Android, of course, are not uncommon. The problem is that they get lost among the garbage and trash on Google Play.
This article presents useful Android programs that you really should pay attention to, and they will serve you well in return.

Kate Mobile
Maybe if the list starts with a social networking app, it says something about the modern world. But to be honest, they really mean too much in today's life. The most useful programs on"Android" (whether it's a tablet or a smartphone, it doesn't matter) must contain means of communication using the Internet. And "Kate Mobile" belongs to this genus.
The application works better than the official VKontakte client: it "eats" less traffic and with each new update adds more and more new "chips", for example, leaving messages unread, offline mode, designs for every taste. The functionality includes all the standard tools of the popular network + "goodies" in the form of a conveniently organized audio and video player, high-quality work even when VKontakte itself fails.
Kingsoft Office
On the Android device, from time to time I have to open office documents. And for this, as you know, you need a special application. Kingsoft Office is just that. It has a number of advantages over other developments in the same area.

First, it supports all possible Microsoft Office formats.
Second, although the app is completely free, it also has no ads.
Thirdly, "Kingsoft" (it's not for nothing that it literally translates as "Royal Soft") works very stably, you don't have to be afraid that at the most crucial moment it will crash with an error.
Fourthly, the functionality of this program allows you to not only open, but also comfortably edit documents.
And fifthly, the office from the "king" is excellentadapts to the screen size of both smartphones and tablets; no need to worry about scaling.
Mx Player

Every device should have a player. That is the player. Indeed, what could be the most useful Android programs without this mandatory item? MX Player is the favorite in this case. Any audio or video format can be played with it. But for the latter, it is still more convenient to use it. In addition, it goes well with Kate Mobile, which can play "contact" links to videos through it.
Plus in favor of the program: the ability to read both external and embedded sub titles.
UC Browser
By default, "Android" has a standard browser and everyone's favorite "Chrome". But, unfortunately, neither one nor the other is completely unable to make surfing the Internet from a tablet, and especially from a smartphone, comfortable. The simplest example: traffic overload or the lack of a built-in flash player. These problems can be fixed by the Chinese UC browser. Among its advantages is the compression of the volume of pages, and it plays online videos with a bang.
Go Keyboard

Keyboards GO replaces the traditional keyboard offered by Android. It provides a variety of languages to choose from, including Chinese and Japanese characters, Hindi and, of course, much more common in the post-Soviet countries -Russian and Ukrainian.
Russian in "Go Keyboards", by the way, is available in simple and extended versions. The advantage of this application is that thanks to the word suggestion tool, typing on Android will be easier and faster than on a regular keyboard, even if the touch phone was first picked up.