The SMS center is practically indistinguishable from services like SMS Aero, RED SMS, SMS RU, and other similar ones. Its main function is sending and moderating SMS messages, but it also offers email distributions, Viber messages, and voice messages. There are various additional services, such as SIM card hosting or mobile advertising from cellular operators. However, for users like me who only work with SMS, the difference between these services mainly comes down to pricing. The SMS center offers quite affordable rates. Information about the service's operation is always visible, and the personal account provides access to the service agreement, current balance, rates, and information about sent and received messages. Customer numbers must be entered in international format, even if the distribution is within Russia. I had a large database at the start, and I didn't have to enter it manually — I just imported the .xlsx file. Messages are sent instantly, and the delivery rate is high. Over time, I set up personalized distributions with specific intervals, created separate groups, and conducted distributions to them, as well as developed special types of distributions, such as offering discounts on the customer's birthday.
