Instagram and Snapchat are making changes with a new bully filter and another redesign respectively.

Here’s a look:

Instagram Unveils a Bully Filter

Instagram said Tuesday it was expanding its online anti-bullying initiative, adding a new filter to weed out comments meant to harass or bully the 800 million users of the popular social media site.

The company said it would review accounts that have a large number of comments filtered out. If those accounts violate Instagram’s community guidelines, it will take action, which could include banning them. The new filter will also hide comments attacking a person’s appearance or character, and alert Instagram to repeat offenders.

It is the second step in an initiative announced last year to curb offensive comments and rid Instagram of its most malicious members.

“To be clear, we don’t tolerate bullying on Instagram,” Kevin Systrom, the company’s chief executive and co-founder, told Instagram users in a blog post Tuesday.

The company will also expand policies to guard against the bullying of young public figures who are often the target of hate-filled messages.

“Protecting our youngest community members is crucial to helping them feel comfortable to express who they are and what they care about,” he added.

In a 2017 study conducted by Ditch the Label, an online anti-bullying organization, 71 percent of respondents in the United Kingdom said social media sites did not do enough to combat online bullying. Instagram was of particular note: 42 percent of more than 10,000 people aged 12 to 20 said they had experienced cyberbullying on the site in the previous 12 months.

In March, model and actress Amber Rose called out cyberbullies for saying her 5-year-old son was gay after she posted videos on Instagram of him opening a gift from singer Taylor Swift.

It is not only children who are targeted. In November, Drew Barrymore was attacked after she posed with a starfish in a photograph to promote a new lipstick.

“It hurt me,” she wrote in a follow-up post, which was liked 484,238 times.

Snap to Tweak Snapchat’s Redesign

When Snapchat’s app was redesigned late last year, a viral rage gripped its passionate and young users.

Social media star Kylie Jenner tweeted that she had not been using the app as much and called the changes “sad.” More than 1.25 million people signed a petition to get the company to return the app to its old design. A complaint on Twitter about the Snapchat redesign became one of the most retweeted messages of all time.

On Tuesday, Snapchat’s parent company, Snap, said it would redesign parts of the app’s redesign after the overhaul had dragged down its business.

For the first three months of the year, the social media company reported Tuesday, it posted a narrower loss than a year earlier and a 54 percent increase in revenue, to $231 million, which was below analyst expectations. While Snap’s number of daily users rose to 191 million in the quarter, that figure was also below what Wall Street had anticipated. And the company said its user numbers in March were even lower, though it did not release them.

Evan Spiegel, Snap’s chief executive, cited Snapchat’s redesign as a major reason for the disappointing performance.

“A change this big to existing behavior comes with some disruption,” he said, referring later to “headwinds from the redesign.”

The quarterly results, which sent Snap’s stock plunging more than 15 percent in after-hours trading, were a reversal from the previous quarter, when the social media company had finally appeared to shrug off its losing streak with strong sales and user growth. Snap, which went public in March 2017 and is often seen as a competitor to Facebook, has been grappling with inconsistent results, casting a cloud over its prospects.

The latest earnings indicated that Snap had not been able to capitalize on the woes of Facebook, which has been dealing with a backlash over data privacy. Facebook said last week that it had added 70 million monthly active users in the first quarter, bringing it to 2.2 billion.

So now Snap will tweak its redesign.

Snapchat began as an app to send disappearing messages to friends, but it later added professional content from media companies and other features. When the company changed the app last year, the goal was to separate chats and stories from friends from the content of media properties, such as celebrities and publications.

In practice, that meant Snapchat had two sides. The left side of the app featured chats and stories shared with, or by, people’s friends. On the right side was content from publishers, amateur creators and celebrities and stories that Snap curated from user-generated videos and photos.

The goal was to expand the more lucrative media side of the business and to increase the app’s appeal to an older demographic. But over the past few months, the changes diluted the core chat experience, which became cluttered with user stories. Snapchat’s users, who are mostly young, quickly rebelled.

“Snap has their back against the wall,” said Daniel Ives, the head of technology research for GBH Insights. “They need to work with their user community.”

Now the company is moving stories made by friends back to the side of the app that also has media content. This change is aimed at decluttering the app’s chat function.