If Sidecar was your go-to ride-hailing app, you're going to have to start looking elsewhere. After trying, and failing, to keep up with its competitors, Uber and Lyft, Sidecar has announced it will be shutting down operations on Dec. 31, according to Forbes. The news comes weeks after both ride-hailing services vowed to raise more than $1 billion in funds.

"Our vision is to reinvent transportation and we've achieved that with ride-sharing and deliveries. It is, however, a bittersweet victory. Shutting down the Sidecar service is a disappointment for our team and our fans. The impact of our work, however, will be felt for generations to come," said Sidecar co-founders Sunil Paul and Jahan Khanna in a blog post, according to Bloomberg.

The company was created four years ago, but its founders assured customers that it is ready for its "next big adventure in 2016."

Since 2014, Sidecar began branching out and working with other companies, according to CNN Money. The company began working with food delivery services and joined forces with a medical-marijuana delivery service.

Sidecar is known for being the first company to really burst onto the ride-hailing scene. It's also known for being the first to offer the services common for Uber and Lyft today, like drivers using their own cars and passengers paying upfront.