TikTok's 'sonic logo' imprints the app's identity across platforms

A timeline and visuals on TikTok's rapid growth

The app that would become TikTok is known as Douyin in China, and this article recounts its history, acquisition of rival Musical.ly, and rebranding ahead of its lightning growth. One visualization shows how quickly TikTok reached 1B users.

TikTok explained: how the app became a global phenomenon

Since 2018, the short-form, video-sharing app TikTok has gone from launching in the US to becoming a habit-forming cultural force that’s signed up more than half of the country's population as users.

Streaming service Netflix's sound logo 'Tudum' was designed as a key sonic differentiator.

Why TikTok's algorithm is likely driven by what you linger on

While the inner workings of the engine driving the vast majority of the app's engagement remain a secret, it is understood to rely heavily on what content users spend the most time watching rather than swipe past. Experts believe the app can develop user profiles robust enough for its algorithm to consistently match engaging content to in as little as two hours.

TikTok is one of the fastest-growing social media platforms of all time

Centered around user-generated short videos, the platform was created by the Chinese technology company ByteDance Ltd. With over 1.8 billion users, the app has become a global force.

TikTok CEO Shou Zi Chew on its future

TikTok CEO Shou Zi Chew dives into how the trendsetting video app and cultural phenomenon works, from what distinguishes its algorithm and drives viral videos, to the challenges of content moderation and digital addiction in this wide-ranging conversation with the head of TED, Chris Anderson.

How TikTok ate the internet

TikTok is now deeply integrated into American culture, thanks to the app’s powerful algorithm and focus on entertainment which have influenced popular trends and social media content consumption in the US. This immersive piece highlights TikTok’s role in helping shape everything from music to fashion and even politics in the US—while its connection to China has also drawn scrutiny and raised national security concerns.

TikTok's personalized algorithm activates the brain's reward system

A 2025 Washington Post study found that 75% of the TikTok users it studied nearly doubled their time spent on the app within a month. Experts in design and psychiatry say this is due to the app's interface and algorithm, which, after learning about the user's preferences, recommend videos more likely to activate that person's dopamine reward system than non-personalized suggestions.

Understanding TikTok-owner ByteDance's business model

ByteDance has ridden TikTok's major success to become the world's most valuable startup. This deep dive showcases some of the company's smartest moves and tactics, and where it's headed next.

The TikTok sale went through in January 2026

The app's ownership is now majority American, though TikTok CEO Shou Chew, who is Chinese, remains on the board of directors. It's unclear what, if anything, has changed for American users, as the company has historically kept the specifics of its algorithm a secret.

How to read the news on TikTok

There's plenty of news on TikTok, but that doesn't mean it's all reliable. This guide, written by a communication technology professor, breaks down the ways the app's algorithm delivers news. It also covers how users can determine whether or not a story is factual or misleading. Most strikingly, the professor warns readers that if they didn't search for a TikTok video, then "it probably found you."

TikTok's algorithm has changed the way hits are made

Songs aimed at TikTok's algorithm—designed for viral dances or soundtracking common experiences—often find success on the Billboard charts. An early example was Lil Nas X's "Old Town Road," which used his memes and a country-trap beat from the Netherlands to rise to the top of the Billboard charts.

Music today is often intended to circulate on social media

Artists are increasingly using TikTok and other short form video platforms as a space to promote their music. One scholar notes this emphasis, and connect it to Taylor Swift's early use of social media to promote her own work and brand.

The rebrand to X was to make Twitter an all-in-one social media app

Elon Musk renamed the platform as part of his plan to create an app that goes beyond posts and tweets. The rebrand included a new name, logo, and vision for a platform that offers messaging, video, banking, shopping, and more.

TikTok boasts nearly 1.8B monthly users

The app has surged in popularity recently, with usage surging during the COVID-19 pandemic. Those users have generated high revenues, too, with over $23B in 2024.

TikTok can turn everyday users into stars

TikTok is such a cultural force, it’s now a platform for turning ordinary users into stars. This "Planet Money" podcast episode performs a deep dive into how Tai Verdes went from working a day job and dreaming of becoming a successful musician to using TikTok to gain a following.

Most memes now begin on TikTok

The website Know Your Meme looked at the data for 700 to 1,400 memes uploaded to the platform each year from 2010 to 2022. In 2010, a majority of memes began on YouTube (34%) or 4chan (28%), but by 2022 most were starting on TikTok.

TikTok isn't factored into a song's rank on the Billboard charts, but it can have an impact

Billboard ranks a song's chart position based on its radio airplay, its physical sales, and its streaming numbers (across Spotify and other platforms), but doesn't include user-generated content, meaning it doesn't include TikTok videos. Keith Caulfield, Billboard's managing director of charts and data operations, notes that TikTok still has an impact, though, because listeners will often stream the app's most popular songs on other platforms.

TikTok intentionally keeps users scrolling, something researchers have found makes it more addictive than other short-form video platforms.

Why TikTok loves fast-casual restaurant Chili's

The company noticed TikTokers posting enthusiastically about its food and began partnering with creators on the platform. The videos include mukbangs, a South Korean trend in which users eat a massive amount of food, and #cheesepulls, where Chili's mozzarella sticks are stretched to their limits.

TikTok doesn't exist in China

TikTok is owned by the Chinese company ByteDance Ltd., yet only the platform’s sister app Douyin is available in China. That's because the Chinese government regularly censors Douyin—something ByteDance likely believes would degrade TikTok, its international app.

Less than half of TikTok's US users have posted a video

Like most platforms, content is driven by a small number of active users—in TikTok's case, 25% of accounts are responsible for an estimated 98% of content posted.

How to catch a TikTok thief

Someone took a 10-second clip of a parody video made by Hugh Clegg and posted it to TikTok, where it racked up millions of views. The uncredited clip meant viewers assumed it was owned by the uploader, an assumption Clegg was eager to rectify. His messages and comments had no real effect outside of earning him temporary bans for "spamming." So he decided to moonlight as a private eye.

Why TikTok loves Rainer Maria Rilke

It seems like an odd fit: A social media app known for bite-sized videos and a long-dead Austrian poet. Despite the odds, Rilke, especially his famous "Letters to a Young Poet," has become an unexpected trend on TikTok, where influencers share his wisdom on creativity and self-discovery.

TikTok's top 10 users have over 1B followers

Influencers like Charli D'Amelio and MrBeast, as well as more traditional stars like Dwayne "The Rock" Johnson, produce content that keep people scrolling.

Understanding 'YouTube Face,' the platform's pervasive thumbnail style

It's an image that's rampant across the web's premier video platform: open mouths, astonished eyes. It looks cheesy and cheap, yet its practitioners are some of YouTube's most popular personalities. The Ringer's Nate Rogers digs into the history of the phenomenon to learn why it's had such staying power.

Tencent has relatively low name recognition outside of China—despite being the world's biggest video game publisher—operating a 1.4-billion-user messaging network, and holding more than 80 companies with valuations exceeding $1B.

X's bird logo cost just $15 and wasn't added until four years after launch

When Twitter launched in 2006, it featured green, slimy lettering and lacked the now-famous bird icon. The bird was adopted in 2010 and eventually became the platform's official logo—unofficially named Larry after NBA legend Larry Bird.

Watch 4-plus decades of Pixar's opening logos.

See a breakdown of every single video game Tencent has invested in.

X (Twitter) started as a way to share short updates via text

What began as a way to share 140-character updates quickly grew into a vital platform for activism, politics, and pop culture. Hashtags, trending topics, and retweets—now common across the internet—originated on the platform.

Here is a visualization of the creator economy as an ecosystem

From social media platforms like Instagram and TikTok, to major advertisers paying influencers to promote their brands, to the consumers watching online content, quite a few engines have to keep firing to make the creator economy run smoothly.

Social media algorithms are shaping real-life language through memes

The evolution of the internet in the early 2000s supercharged the creation and spread of memetic content. Now, highly tuned algorithms on platforms like TikTok and YouTube influence the language, phrasing, and content of creators, which shapes how we use language in the real world.

Douyin is a dominant channel for government propaganda

Driven by strict censorship rules, ByteDance Ltd. spun off TikTok from its sister app Douyin—the version available in China—in order to flourish in international markets. This “60 Minutes” report compares the apps side by side.

Meta has added video features to attract more young users to Facebook

Amid an aging userbase and competition from newer social networks like TikTok, Facebook has seen its perceived relevance and cool factor progressively decrease. The Local tab and dating features are among several efforts to counter this perception.

TikTok is resurrecting sampled songs

Rapper Doechii's song "Anxiety" has become a bona fide chart hit. Interestingly, its popularity on TikTok propelled Gotye's "Somebody I Used to Know" (the song Doechii's song samples) and Sleep Hallow's "A N X I E T Y" (a song that samples the Doechii song) onto the charts as well.

The first social media platforms date back to the late 1990s, and their algorithms were typically chronological, with entities like MySpace and Facebook feeding users content from the most recent posts to the oldest.

In 2025, ByteDance agreed to sell the app's US branch

In 2024, US lawmakers passed a requirement for parent company ByteDance to sell TikTok or face a ban in the country, which the company challenged in court. After several extensions granted by President Trump, ByteDance agreed to sell the company's US branch to a group of US investors, including Oracle, which will oversee the app's security and cloud computing.

TikTok is changing the building trades

Plumbers, welders, and general contractors are meeting their customers on TikTok. This article delves into the growing group of tradespeople documenting their work (and advertising their services) on the popular app. The profiled workers are convinced this is the new way to sustain a life in the trades.

TikTok is transforming the English language

Linguists like Adam Aleksic have argued that the way internet slang—especially the kind that thrives on TikTok—enters the real world isn’t so different from how English evolved in its earliest days.

What Trump's second 75-day extension means for TikTok sale

After President Trump took office in January 2025, he offered TikTok the opportunity to find a US company to buy the app within 75 days. In the meantime, the app continued operating. In April, Trump extended that deadline by an additional 75 days. This BBC article breaks down what that means for the company's potential buyers and for its users.

Watch a timeline of Tencent—one of China's earliest tech giants—despite the company's low profile.

The stories behind open-source project logos, including Tux, Linux's penguin mascot

During a trip to an Australian zoo, Linus Torvalds, the developer of the Linux kernel, was bitten by a penguin, which inspired the animal to be selected as the software's logo. The first design was drafted by Larry Ewing while a student at Texas A&M University, and the Tux name—short for tuxedo—aligned with the animal's appearance.

Threads offers sleek design but fails to deliver X's unique user experience

Despite its smooth setup, Threads lacks the algorithmic depth and cultural edge that made X (formerly Twitter) feel essential to longtime users. The overlap with Instagram contacts creates a less authentic space, limiting the raw, real-time energy people loved on X.

The evolution of X, from startup to Musk-owned giant, reflects rapid tech shifts

Twitter began in 2006 as a side project and grew into a major global platform, widely used for news, activism, and political discourse. Despite mainstream success, it faced ongoing management turmoil, business struggles, and rising concerns over misinformation and user safety.

The TikTok ban isn't just for TikTok

The Protecting Americans from Foreign Adversary Controlled Applications Act makes it unlawful for any “foreign-adversary controlled” entity to distribute, maintain, or update any “website, desktop application, mobile application, or augmented or immersive technology application” within the US.

Social media platforms benefit not just from ensuring they have satisfied users, but also from the personal data they scoop up and can then sell to online advertisers.

The average TikTok user spends 95 minutes on the app per day

According to HubSpot, the average TikTok user spends 95 minutes per day using the app, and an estimated 90% of users access TikTok daily. TikTok also has the highest average session length among social media platforms: Its users spend almost 11 minutes per session.

Created when Tencent launched the first version of its internet messaging platform, QQ, the company's winking penguin has become a ubiquitous cultural presence in China.

What Trump's executive order provides TikTok

Just a few days into his second term, President Trump paused the US law banning TikTok through an executive order. While that may sound like an all-out reversal, it's more of a time out, granting ByteDance an additional 75 days to find a US-based seller. This resource breaks down what Trump's executive order provides the Chinese company and what it might mean for the future of the app.