VKStorm is a fairly simple and convenient program for promotion on VKontakte. I like the principle of mutual exchange: you don't have to spend your own money on promotion; you can complete tasks and earn points, which can then be used to order likes and subscriptions for your groups. Additionally, if you wish, the earned points can also be monetized at the system's exchange rate: 100 points are roughly equivalent to 60 rubles. This is quite good for earning, especially considering that tasks are valued from 3 to 15 points depending on the generosity and needs of the users placing the orders.