Craigslist has long been the online marketplace for everything from sports tickets to gardening supplies and goods and services in dozens of other categories. But some users avoid the spare, graphics-free website, and new online portals are entering the sector.

Now the startup OfferUp is looking to be the Craigslist for the smartphone generation. The company has facilitated $2.9 billion in commerce this year, though it has yet to show a profit, according to Forbes.

By contrast, Craigslist, which does not have a smartphone app, has generated $381 million in revenue, with $300 million in profits in 2015, despite its seemingly outdated look and free access for most postings. Craigslist does charge a fee for paid job ads and real estate brokerage and apartment listings.

Still, some believe that OfferUp is ready to take on the online buying-and-selling sector. While it specializes in local connections, OfferUp is available nationwide and has been downloaded by 11 million users. The app’s feed highlighting pictures of items for sale attracts many buyers who are just browsing the site, according to a company spokesman.

OfferUp has raised $90 million from investors and calls itself the nation’s “largest mobile-only marketplace.”

Like Craigslist, the company has to manage problems unique to online buying and selling, including users not knowing whether to trust the person on the other end of a transaction. OfferUp has instituted a ratings system to help verify users, as well as identification checks and strong attention to customer service to handle complaints.

Another new entry in the field, VarageSale, has taken a different approach to secure online local buying, stating they want to do the opposite of Craigslist by stressing strong on-the-ground support for local communities. Their model uses local administrators who verifies members and monitors the community. VarageSale is also competing with OfferUp for investors, having raised $34 million from Sequoia Capital and others.