In a post on Facebook's newsroom, the company said aside from taking the apps down, the data from the apps would be deleted within 90 days.
The social network on Monday announced it is shutting down tbh, a teen messaging and polling app it acquired previous year, and two others due to "low usage".
Facebook is shutting down a trio of apps launched over the last four years due to low user engagement.
Facebook launched Hello in 2015 as a way for people using Android in Brazil, Nigeria and the U.S. to combine contact information on their phone with information from Facebook.
Nikita Bier is the founder of tbh and, asked by Business Insider about his future plans, responded: "I'll be staying with Facebook and continuing to build new products with the tbh team".
Tbh ("to be honest") was downloaded 5 million times in the United States in its first nine weeks, before being bought by Facebook for an undisclosed sum.
Facebook is also shutting down Moves at the end of the month, Moves being a fitness app the company bought in 2014 that records all of your daily activity like walking, cycling and running. Moves will shutdown on July 31st.
"We regularly review our apps to assess which ones people value most", the company wrote in its announcement.
Let us know in the comments whether you're still using these services, or whether you've even heard of them before! Only bought by Facebook eight months ago, the company was set up to create a positive app for teens immune from the cyberbullying of Yik Yak or Secret. The reason for closing all three apps was "low usage".
"We need to prioritise our work so we don't spread ourselves too thin". It's an anonymous social media app for high school students in the US.
It wasn't clear whether tbh's closure, announced on Monday, might mean layoffs. It's only by trial and error, Facebook says, that they'll create great social experiences for people.