Popular programs for remote assistance services include:  Teamviewer ,  Ammyy Admin  and  AnyDesk . And now about each in order, pros and cons. 

Let's start with TeamViewer, probably the most famous due to the fact that it was one of the first to appear, and there was quite a lot of advertising. The advantage is that it is initially installed for most users. The downside for those who use it frequently is that the number of sessions is limited in time. We can say that it is not cheap, an annual license for one computer controls another costs about 8,000 hryvnia, which for our market you must agree is not cheap. 

Anidesk is also not new to this business. The software is quite popular. On the plus side, the free version is not limited in time, but it has its own jokes in transferring files and more. Here the price is more loyal: an annual subscription costs 100 euros per year of use. You can probably add restrictions to the minuses and that’s it. I would also like to say about compatibility in many systems. What makes it attractive to Internet users.

AmmiAdmin is something that works like a clock. Although the most unpleasant thing is that you can download it only in several browsers, namely Internet Explorer, Edge, Opera. Some antiviruses also swear, but over the years there have been no problems. And in terms of speed, I’m not afraid to say it’s the fastest. There are many advantages, the working time in the free version is 15 hours per month. That is, every day for half an hour, and this is more than enough. Super convenient file transfer. I would like a version for MacOS and Linux, but unfortunately they are not available.

It's up to you to decide which program you use! I have everything