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Zero to Millions: How a Taiwanese Engineer Got Japanese Addicted to "RandomChat"
The study "Loneliness and Social Isolation in the United States, the United Kingdom, and Japan: An International Survey," published by an independent source for health policy research, polling, and journalism, found that one in ten adults in Japan often or always feel lonely, lack companionship, feel left out, or feel isolated from others. Many report that their loneliness has negatively impacted various aspects of their lives.
RandomChat, an anonymous chatting app was created by Taiwanese engineer Gigi Wu and her husband Shunta Komine. Where does this want to connect anonymously with strangers on the internet come from? As Gigi Wu explains, “Some people want a more active way to pass the time instead of passively watching videos. Even after work, they crave connection.”
No Profiles, Just Chats: How RandomChat Works
When users open RandomChat, they’re instantly matched with someone new—no need for profiles or usernames, so the experience is low-pressure and completely anonymous. Users simply hit “Start” and are connected with a chat partner in just one second. It’s designed for those who prefer a seamless, spontaneous way to interact without any commitment.
When RandomChat first launched, it offered a simple one-on-one text chat with random matching. However, as Gigi Wu observed user behavior, she adapted the app to better suit their preferences. She added group chat features but noticed that many users preferred listening over participating. “We started with simple text-based chat, then added group voice chat, but we found that sometimes four people would listen to one person talking, many users just wanted to listen,” she explains. In response, she introduced a live streaming feature specifically for those who enjoy listening as much as interacting.
“It’s a bit like Clubhouse,” Gigi Wu explains. “We let the most active, expressive users share their lives, creating content for the other 90% who enjoy listening.” This approach transformed RandomChat into more than a chat app, it’s a space for different personalities to interact how they prefer.
Why makes RandomChat so popular? For many, it’s become a daily habit. Daily active users (DAU) are above 30,000, and monthly active users (MAU) hit around 100,000. On average, users spend over an hour a day on the app. In a recent survey, nearly 80% of RandomChat users said they’d genuinely miss the app if it ever shut down.
On the business side, RandomChat is bringing in solid revenue, pulling in over ¥10 million (around $67,000 USD) each month. This success comes from a subscription option that removes ads and a live-streaming feature where users can earn and spend in-app points.
What Sets RandomChat Apart?
With so many social apps in Japan like HelloTalk, Yay!, how does RandomChat maintain its edge? Gigi Wu believes the answer lies in simplicity and anonymity. Users don’t need to create profiles or reveal personal details, making it a low-pressure, highly inviting platform. Wu and her team also prioritize user safety with robust moderation, including keyword filters and regular monitoring. “The real challenge isn’t just creating an app that works, but ensuring it’s a secure, comfortable space for users,” Gigi Wu says.
Another element that makes RandomChat stand out is the random assignment of everything : profile images, chat partners, and even usernames are assigned automatically. “If the user doesn’t understand how to navigate the app smoothly, they’ll just leave,” says Gigi Wu, highlighting her engineering mindset that helped shape the user experience.
While the app is currently focused on Japanese-speaking users, Gigi Wu has set her sights on expanding to South Korea and Taiwan. This year, the app was selected for the AAMA Taipei Cradle Program, which could fast-track its regional expansion.
With a firm hold on Japan’s loneliness market and ambitious plans to grow, RandomChat is poised to become a go-to platform across Asia for anyone seeking a meaningful yet spontaneous way to connect.
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