There is no demo version, you just pay money, and there is no option for a refund. I have been using this service for several years, and I can't seem to get rid of it. Prices keep rising, data gets blocked, and then access to it is sold. Every step requires spending. I don't know where I can switch to; I have no more strength for SBIS. I do not recommend it to anyone, unless you don't mind wasting money and nerves.
