The firm would stop operations from September 25.

"Unfortunately, we do not have the resources to fend off a large company like Twitter to maintain our mark which we believe whole heartedly is rightfully ours. Therefore, we have decided to shut down Twitpic," announced its founder Noah Everett in a blog post.

Twitpic was a popular service in Twitter's early days as a means of sharing photos on the social network.

"We are sad to see Twitpic is shutting down," a Twitter spokesperson said. Twitpic will inform users how to export their photos and videos soon.

The dispute revolves around Twitpic's effort to have its name approved as a trademark, which Twitter appears to believe violates its own trademark.

Twitpic gained a loyal following after its 2008 launch for allowing users to post photos on Twitter's social network. Twitter has since added its own photo-sharing feature directly within its Web service.

The dispute with Twitpic is not the first time that Twitter has tangled with third-party apps and services that are based on its social network. In 2011 Twitter temporarily blocked UberTwitter, a mobile app that offered a specialized way to use Twitter, for violating Twitter's trademark and its policies.