Online directories are a popular way for businesses to improve their online visibility and attract new customers. However, there are often two types of online directories available: free and paid. Here are the key differences between these two types of directories:

1. Visibility: Paid directories often offer more prominent placement and higher visibility for businesses, which can help attract more customers. Free directories may have a larger number of listings, but they may not be as prominently featured.
2. Control: Paid directories often offer more control over your listing, allowing you to customize your listing with additional information, images, and features. Free directories may have more limited options for customization.
3. Quality: Paid directories may have more stringent criteria for listing businesses, which can result in higher quality listings. Free directories may have a wider range of listings, but this can also mean lower quality listings.
4. Customer support: Paid directories often offer more robust customer support, with dedicated account managers and technical support. Free directories may have limited or no customer support.
5. Cost: As the name suggests, free directories are free to use, whereas paid directories require payment to access additional features and benefits. The cost of paid directories can vary widely depending on the directory, the level of service, and the industry.
6. Longevity: Paid directories may have more stable and long-term business models, which can help ensure that the directory remains active and relevant over time. Free directories may be more prone to changes or discontinuation, which can result in the loss of your listing.

In conclusion, both free and paid online directories can be valuable tools for businesses looking to improve their online visibility and attract new customers. Paid directories offer more prominent placement, greater control, higher quality listings, more robust customer support, and additional features, but at a cost. Free directories may have more listings, but they may be of lower quality and have more limited customization and customer support options. Ultimately, the choice between free and paid directories depends on your budget, your goals, and your industry.