The phrase "added more content" is correct and usable in written English.
You can use it when discussing the act of including additional information or material in a document, presentation, or any form of communication.
Example: "After receiving feedback, I decided to added more content to the report to make it more comprehensive."
Alternatives: "included additional material" or "supplemented with extra information".
Eventually, it the app added more content sources.
Women added more content than men in this male-dominated essay condition when peer editors modeled constructive feedback.
The team has also added more content to the app, including details on restaurants where kids eat free, places with public mother's rooms, preschools and family friendly hotels.
Facebook has redesigned its Family Safety Center and added more content to educate parents, teens and children about safety and privacy on the site.
Then I was able to realize that the reason for my delay in publication was that I added more content to my book which made it better than before.
A 2013 poll found 1 in 3 American adults rejects evolution as an explanation for human origin [ 33], so it is not surprising that almost half (48%) of responders anticipated igniting at least some controversy at their medical school if they added more content about evolution.
He added that the service focuses primarily on drama, entertainment and factual programming, but he was keen to add more content for children, as well as music programming.
Media companies like Hearst Magazines, part of the Hearst Corporation, are scrambling to keep up, adding more content to their Web sites like video clips.
It sees itself as having the long-term objective of "continuously adding more content and making it affordably available to more people around the world".
"Over the next decade I think we'll be able to add more content and have more value and then price that appropriately".
After adding more content to the Web site, he wrote and published an e-book study guide for the test and started selling it to his Web visitors.
