Rating of popular CRM systems

If an entrepreneur has not organized the maintenance of a customer base, the probability of repeat sales decreases. And here we can only hope that customers will return on their own initiative. Maintaining a customer base in a notebook or Excel is already better, but why use outdated tools? Your business will work better if you systematize and digitize customer relationships in a special service - CRM. Below we will tell you in more detail about popular CRM systems, their capabilities, advantages and disadvantages.