@kkkkkkkk VS Community Edition is free. Th month limit is for unregistered users, but after registering and login in in VS, you can use it for as long as you want, and still free (I have over a year using VS2015).
Other option that you may want to check is using QT Creator, but also needs registration and need a proper msys2 installation + dependencies as described in the setup guide; as is a recent adition to the OF support platforms, you can expect minor problems with addons and some old applications.