What's the difference between QQ, WeChat, and Weixin?

WeChat: The world's second-largest messaging platform

The central technology in Tencent's empire, WeChat boasts roughly 1.4 billion users and provides a platform for the company to expand its ambitions in digital payments, e-commerce, and more. Unlike rival WhatsApp (owned by Meta), WeChat was built as a "superapp"—a single place where users are provided a wide range of features.

'Red envelope' payments spurred WeChat's financial services growth

What started as a messaging platform morphed into much more with the advent of so-called red envelope payments, where friends, colleagues, and acquaintances recreate an age-old Chinese custom with the tap of a finger. The viral custom helped WeChat expand its digital payment services, effectively becoming a “superapp.”

Tencent—one of China's earliest tech giants

While not as well-known as Temu or Shein, Tencent began as an early internet messaging platform. Over three decades, it expanded to digital payments, video games, and more, becoming the first-ever Chinese company to surpass $500B in value.

Tencent's revenue streams include fintech, advertising, games, and social

Headquartered in China’s Shenzhen tech hub, Tencent currently generates revenue through services like WeChat, WeBank, and Tencent Games. Each of these services (and their associated sectors) made up roughly a third of Tencent’s 2024 annual revenue.

How Tencent's QQ penguin became a national mascot

Created when Tencent launched the first version of its internet messaging platform, the company's winking penguin has become a ubiquitous cultural presence in China. The mascot has become a revenue generator, with Tencent licensing the character for cross-promotion with KFC, Midea Group, and more.

Critics call WeChat a surveillance tool

This report from the Citizen Lab details evidence WeChat, with 1.4 billion users, is a powerful surveillance tool for the Chinese Communist Party. In particular, it finds the government uses non-China accounts to train censorship algorithms for use on domestic communications.

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.

Temu was born out of a Chinese company that, at the time, was called Pinduoduo

Today, the company is called PDD Holdings, and owns both Temu and its very similar sister app in China, Pinduoduo.

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.

Are emojis real communication? And other questions for the experts

Emojis took off around 2009, after Apple's operating system for its defining iPhone became available in Japan. By 2012, a standardized set of emojis was released, and now seven in ten users feel a message without one of the 3,664 official emojis is lacking.

At 12 years old, Mark Zuckerberg built a messaging platform for his family called 'ZuckNet'

Mark's family used "ZuckNet" to communicate with each other in different rooms and Mark's dad's dental office, which was connected to their family home. ZuckNet ultimately didn't go anywhere, as AOL's instant messaging platform soon replaced it.

Learn about Web3 and how it differs from past versions of the internet

Web3 is the idea of a new, decentralized internet built on blockchain technology. It aims to shift control from centralized entities like big tech companies to users through distributed ledgers and smart contracts. Key components include cryptocurrencies, NFTs, and decentralized autonomous organizations (DAOs) that operate without a central authority. Web3 promises more user privacy, ownership, and control over data and digital assets.

What is the Fediverse?

The "fediverse" is a league of like-minded apps looking to make our digital identities—including posts, followers, activity—move seamlessly between networks. It's a decentralized approach, making various social networks interoperable in contrast to Facebook and Twitter, where content is platform-specific. The fediverse provides stability and control to users. Learn more here.

China's 'One China' principle vs. the US 'One China' policy

The "One China" policy means different things to different people, but in the larger sense there are two primary interpretations: the Chinese and the American versions. Both refer to relations and contact between the mainland People's Republic of China and Taiwan/The Republic of China. This article covers the subtleties and differences between each country's approach to the "One China" principle.

Learn how the algorithms behind Tinger, Bumble, Hinge, and other dating apps work

Formerly based on the Elo rating system, which ranks chess players, the Tinder algorithm is built on user data, with more time spent on the app providing more data on user preferences from which to customize potential matches. OkCupid's match percentage algorithm relies on overlaps in users' search preferences and responses to a subset of over 4,000 questions.

How end-to-end encryption protects messages, even from service providers

Using symmetric and asymmetric cryptography, data is encrypted on the sender's device before being transmitted across application servers that lack the key needed to decrypt it. The message is not decrypted until it reaches the recipient's device, which uses their private key to recover the plaintext. E2EE's effectiveness has led to its adoption by WhatsApp and Signal.

A catalog of 3,000 ornate Chinese cigarette boxes and brands

China's vast, state-owned tobacco market has produced enough regional brands and packaging variants to sustain a dedicated collector community. Ciggies.app functions as both a product database and an enthusiast social network, with entries spanning current mainland releases, historical discontinued brands, and international imports.

China operates multiple different sovereign wealth funds, primarily backed by profits from a trade surplus

Unlike other countries that primarily use profits from natural resources, China's sovereign wealth funds are fueled by the country's mounting trade surplus. Among the two largest are the State Administration of Foreign Exchange (SAFE) fund and the Chinese Investment Corporation (CIC). China also operates the Silk Road Fund, a strategic investment initiative that backs infrastructure creation in developing countries.

Some argue that advance payday apps aren't markedly different from payday loans

Some apps, like EarnIn, allow users to get money from their paycheck in advance. These apps access users' banking information, allowing the company to immediately take back any borrowed money and track users' financial situations to evaluate their risk. Unlike traditional payday lenders, these apps often waive the right to sue users who don't pay back the initial principal and don't charge interest, but rather ask users for a tip. (Some users may experience a paywall.)

Memecoins are a type of cryptocurrency—a form of digital currency with a wide variety of uses—created around popular 'memes,' or viral internet jokes.

Do people really look younger than they used to?

Why do people today look younger than they used to? From style to science, there are 3 surprising reasons we age differently now.

Yahoo acquired Paul Graham's former startup Viaweb in 1998

Viaweb was the web app tech startup that Paul Graham, Robert Morris, and Trevor Blackwell cofounded before they started Y Combinator. The company sold for $49M and Viaweb was rebranded as the Yahoo Store.

WeWork makes money via flexible lease options

WeWork makes money by entering long-term leases with office buildings, then providing flexible lease options to its members on a short-term basis. Members get a refreshed, modern space to work in (with consistent coffee on tap, of course), and WeWork gets their consistent membership dues.

What's the difference between a stock and a share?

While the words "stock" and "share" are often used interchangeably in casual conversation, they have different meanings. For instance, "stock" is more general, whereas "share" is more precise.

Computex differs from E3, the now-defunct game-focused media expo

Unlike E3’s consumer- and media-driven focus on video games—before the event’s cancellation in 2023—Computex centers on computer and gaming hardware, with a focus on business-to-business meetings and industry partnerships.

The WNBA includes 13 teams

Many teams share markets with an NBA team, and some share arenas; however, seven are independently owned. The WNBA will expand into Canada in 2026.

This site reaches millions of visitors who are tired of AI chatbots and seeking human connection. Pretend to be an AI chatbot and ask questions, provide answers, and draw for people in real time.

Fast-casual restaurant Chili's is experiencing a resurgence, with its parent company recently reporting a nearly 32% increase in sales, thanks to passionate Gen Z fans on TikTok.

While the first exchange-traded fund (a 'basket' of different assets that can be bought and sold on a stock exchange) in the US only launched in 1993, the global ETF market has grown to more than $10T in the short time since.

Brandi Chastain, the star of the 1999 US victory over China in the 1999 Women's World Cup, was a last-second choice to take the penalty kick that sealed the victory.

The Nasdaq's 'Magnificent 7' companies are responsible for roughly 40% of the Nasdaq 100 index's gains, while the remaining 93 companies account for the other 60%.

Budweiser stores yeast derived from the original 1800s strain in a secret bunker, which only the Head of Yeast Management can access—not even the CEO

The identity of the Tank Man in the iconic photo from the 1989 Tiananmen Square protests remains unknown and was possibly killed.

A 2019 Facebook event called on attendees to "Storm Area 51, They Can't Stop All of Us," resulting in countless memes, the creation of a music festival, and eventually the arrests of those who did try to approach the area.

The name 'Silicon Valley' arose from the founding of Shockley Semiconductor Laboratory in Fairchild Semiconductor in 1956-57, founded near Stanford University in Palo Alto

Explore chaos in this simulation of two double pendulums, where small differences in the release angles produce wildly different outcomes.

Coral reefs get their colors from zooxanthellae—microorganisms that line corals' digestive tracts and provide them with sugars in exchange for a home within this protective tissue.

Lesser-known phobias include turophobia, or the fear of cheese, and nomophobia, the fear of being without your cell phone.

Iran's Revolutionary Guard Corps is independent of Iran's regular army and is one of the most powerful and influential military-political organizations in the Middle East.

See this overview of the firework rules across all 50 states, ranging from a complete ban on non-professional fireworks in Massachusetts to states with more lax rules like Indiana.

The term 'algorithm' originated from the Latinized name of al-Khwārizmī, a 9th-century mathematician whose works introduced Arabic numerals and the decimal-based numeral system to Europe and whose treatise 'Al-Jabr' gave algebra its name.

Browse a detailed visual analysis of over 200,000 similes—comparisons that often use 'like' or 'as'—from popular fiction to see how frequently writers the same idiomatic expressions.

NBA superstar Victor Wembanyama spent the 2025 summer training with monks in central China to enhance his body and mind.

Quincy Jones' 'Big Band Bossa Nova' helped introduce bossa nova—a jazz-influenced Brazilian genre—to the US

See a 3D reconstruction of Tenochtitlan, the Aztec capital that was home to an estimated population of 200,000 to 400,000.

To reduce wrinkles in clothing, research recommends gentle wash cycles with more water and tumble drying with smaller loads and longer times.

Mark Twain spent decades feuding with the US Postal Service, convinced its costs and regulations were bureaucratic overreach.

Most of the observable universe's volume consists of voids and supervoids—enormous regions of space with little to no galaxies, stars, or light.

Walt Disney's early film 'Alice's Wonderland' was a groundbreaking innovation in the silent film era

While El Niño moves warm Pacific Ocean waters east along the equator, La Niña moves them west, shifting where rainfall will become more common for months.