How Duolingo Turned a Free App Into a $7.7B Business | WSJ The Economics Of
Duolingo has been the top education app in Apple’s App Store for most of the past decade, making the company a revenue of around $500 million annually. But most people…
Duolingo has been the top education app in Apple’s App Store for most of the past decade, making the company a revenue of around $500 million annually. But most people…
Google’s Gemini Live AI voice assistant on Android and Pixel 9 phones sounds almost human. Apple Siri and OpenAI’s ChatGPT have similar advanced voice capabilities on the way but if…
Since April 2023, as many as 150,000 people have been killed in the Sudan's ongoing civil war, and some 10 million have been forced from their homes, according to the…
The U.S. and China are spending billions to make military drones that use AI to identify or even destroy targets based on data like satellite imagery. Both are actively testing…
Between Norway and Greenland lie some of the most valuable minerals on the planet. From cobalt to rare earths, raw materials are needed to drive multi-billion dollar industries such as…
Watch live coverage of President Biden's remarks following a prisoner exchange with Russia involving wrongfully detained Wall Street Journal reporter Evan Gershkovich, former U.S. Marine Paul Whelan and others. #Biden…
After Hurricane Sandy, New York invested $7.6 billion dollars into flood-proofing the subway – yet it still floods. Now the city’s Metro Transit Authority is looking to spend a further…
A dramatic hostage rescue of four Israelis held captive by Hamas in Gaza on June 8 opened a window to a world of espionage. Footage seen by WSJ documents just…
A new Wall Street Journal poll looks at voters’ views of Vice President Kamala Harris as she becomes the likely nominee for the Democratic party. Here’s what the numbers say.…
From music festival lines to concession stand menus at stadiums, nearly every square foot of major event venues are designed to prioritize safety and boost revenue. Crowd control is vital…