Social media sites have attracted users worldwide due to the fact that being a member does not cost anything at all. But power users may have to pay Twitter a subscription fee in the future, as the microblogging site is considering a premium version aimed at marketers, journalists, and other professionals.

According to The Verge, Twitter is considering offering a paid subscription for professionals, including brands and major news organizations. In a statement to the media outlet, a Twitter spokeswoman said that they are conducting a survey to assess the interest in an enhanced version of Tweetdeck, which is the company’s app for professionals.

Emmy-winning TV writer Andrew Tavani began posting screenshots of the survey and a mock-up of what the paid subscription service could look like. When asked if there was any idea on what the price would be for the premium version of the app, Tavani said, “The price point Twitter inquired about in the survey I took was $19.99 a month.

Users commented on the news of the possible paid version of the site, with some saying that Twitter should just make the app better for free so that more users will stay active on the site and to get more ad revenue.

According to the New York Post, Twitter reported last month that it had 319 million users worldwide. But unlike Facebook, which has generated 29.6 billion USD in 2016 mainly from ad revenue, the site failed to attract enough in advertising revenue to turn a profit.

Tavani also posted the complete list of features that will be included in the paid subscription. It was said that the premium version of Twitter will have exclusive content on social media best practices and strategy. It is also said to have the ability to manage multiple Twitter accounts, advanced publishing features, color themes and layout customization, advanced tools for sorting or filtering searches, and enhanced tools for managing and creating custom audience list, among others.

A source told The Verge that Twitter has not yet begun to build the premium subscription service.

For more, check out Jobs & Hire’s report on Instagram’s advertisers.