Type of business | Public |
---|---|
Traded as | |
Founded | 2011 |
Headquarters | Pittsburgh, Pennsylvania, U.S. |
Area served | Worldwide |
Founder(s) | |
Key people | Luis von Ahn (CEO) Severin Hacker (CTO) |
Industry | Online education |
Products |
|
Services | Language, music, and mathematics courses and language assessment. |
Revenue | US$531 million (2023) |
Operating income | US$−13 million (2023) |
Profit | US$16.1 million (2023) |
Total assets | US$954 million (2023) |
Total equity | US$656 million (2023) |
Employees | ≈ 720 (December 2023) |
URL | duolingo |
Advertising | Yes |
Registration | Yes [lower-alpha 1] |
Users | 103 million MAU (Q2 2024) |
Launched | November 27, 2011 (private beta) June 19, 2012 (public release) |
Current status | Online |
Native client(s) on | Android, iOS, iPadOS |
[1] [2] [3] [4] |
Duolingo, Inc., [lower-alpha 2] is an American educational technology company that produces learning apps and provides language certification. Duolingo offers courses on music, [5] math, [6] and 43 languages, [7] ranging from English, French, and Spanish to less commonly studied languages such as Welsh, Irish, and Navajo. [8] The learning method incorporates gamification to motivate users with points and rewards and interactive lessons featuring spaced repetition. [9] The app promotes short, daily lessons for consistent-phased practice.
Duolingo also offers the Duolingo English Test, an online language assessment, and Duolingo ABC, a literacy app designed for children. The company follows a freemium model, with optional premium services like Super Duolingo and Duolingo Max, which are ad-free and provide additional features. Additionally, Duolingo runs Duo's Taqueria, a Mexican taco restaurant.
With over 100 million monthly active users, Duolingo is the most popular language learning app. [10] [11] [12] Learners on Duolingo complete more than 13 billion exercises per week. [13] A systematic review of research on Duolingo from 2012 to 2020 found comparatively few studies on the platform's efficiency for language learning but identified several studies that reported relatively high user satisfaction, enjoyment, and positive perceptions of the app's effectiveness. [14] The company has also been recognized for its successful marketing tactics and strong brand engagement. [15] [16]
The idea for Duolingo was formulated in 2009 by Carnegie Mellon University professor Luis von Ahn and his Swiss-born post-graduate student Severin Hacker. [17] [18] Von Ahn had sold his second company, reCAPTCHA, to Google and, with Hacker, wanted to work on an education-related project. [19] Von Ahn stated that he saw how expensive it was for people in his community in Guatemala to learn English. [20] [21] Hacker (co-founder and current CTO of Duolingo) believed that "free education will really change the world" [22] and wanted to provide an accessible means for doing so. He was recognized by the National Inventors Hall of Fame for his contributions to language learning and technological development. [23] The Duo mascot is a green owl because co-founder Severin Hacker hates the color green. [24]
The project was originally financed by von Ahn's MacArthur fellowship and a National Science Foundation grant. [25] [26] [27] The founders considered creating Duolingo as a nonprofit organization, but Von Ahn judged this model unsustainable. [22] Its early revenue stream, a crowdsourced translation service, was replaced by a Duolingo English Test certification program, advertising, and subscription. [28] [29]
In October 2011, Duolingo announced that it had raised $3.3 million from a Series A round of funding, led by Union Square Ventures, with participation from author Tim Ferriss and actor Ashton Kutcher's investing firm A-Grade Investments. [30] Duolingo launched a private beta on November 27, 2011, and accumulated a waiting list of more than 300,000 people. [18] [31] It launched to the general public on June 19, 2012, at which point the waiting list had grown to around 500,000. [32] [33]
In September 2012, Duolingo announced that it had raised a further $15 million from a Series B funding round led by New Enterprise Associates, with participation from Union Square Ventures. [34] In November 2012, Duolingo released an iPhone app, [35] followed by an Android app in May 2013, at which time Duolingo had around 3 million users. [36] By July 2013, it had grown to 5 million users and was rated the No. 1 free education app in the Google Play Store. [37]
In February 2014, Duolingo announced that it had raised $20 million from a Series C funding round led by Kleiner Caufield & Byers, with prior investors also participating. [38] At this time, it had 34 employees, and reported about 25 million registered users and 12.5 million active users; [38] it later reported a figure closer to 60 million users. [39]
In June 2015, it announced that it had raised $45 million from a Series D funding round led by Google Capital, bringing its total funding to $83.3 million. The round valued the company at around $470 million, with 100 million registered users globally. [28] [39] In April 2016, it was reported that Duolingo had more than 18 million monthly users. [40] [41]
In July 2017, Duolingo announced that it had raised $25 million in a Series E funding round led by Drive Capital, bringing its total funding to $108.3 million. The round valued Duolingo at $700 million, and the company reported passing 200 million registered users, with 25 million active users. [42] It was reported that Duolingo had 95 employees. [43] Funds from the Series E round would be directed toward creating initiatives such as a related educational flashcard app, TinyCards, and testbeds for initiatives related to reading and listening comprehension. [44] On August 1, 2018, Duolingo surpassed 300 million registered users. [45]
In December 2019, it was announced that Duolingo raised $30 million in a Series F funding round from Alphabet's investment company, CapitalG. [21] The round valued Duolingo at $1.5 billion. Duolingo reported 30 million active users at this time. The headcount at the company had increased to around two hundred, and new offices had been opened in Seattle, New York, and Beijing. [46] Duolingo planned to use the funds to develop new products and further expand its team in sectors like engineering, business development, design, curriculum and content creators, community outreach, and marketing. [47]
In October 2013, Duolingo launched a crowdsourced language incubator. [48] In March 2021, it announced that it would be ending its volunteer contributor program and donating money to its volunteer contributors who helped develop it. The company said that from now on, language courses would be maintained and developed by professional linguists aligning with CEFR standards. [49] On June 28, 2021, Duolingo filed for an initial public offering on NASDAQ under the ticker DUOL. [50] From August 2021 to June 2022, the Duolingo language learning app was removed from some app stores in China. [51] In the early 2020s, Duolingo was noted for its viral videos on the social media platform TikTok. [52] [53]
In August 2022, Duolingo overhauled its interface, changing its course structure from a tree-like design, where users could choose from a range of lessons after completing previous ones, to a linear progression. This update has been criticized by users across social media outlets, such as Reddit and Twitter. [20] CEO Luis von Ahn stated that there were no plans to reverse the changes—intended to simplify Duolingo for its new users—maintaining both the old and new versions would be difficult. [54] In October 2022, Duolingo acquired Detroit-based animation studio Gunner; it is the studio that produces art assets and animation for Duolingo and Duolingo ABC and its marketing campaigns.
In March 2023, Duolingo officially announced the planned Duolingo Max, a subscription tier above Super Duolingo, in their blog. [55] In July 2023, Duolingo launched a feature using the iOS widget feature. In October 2023, Duolingo released math and music courses in English and Spanish for iOS users. [56] [57]
In January 2024, after having laid off around ten percent of its contractors, Duolingo began using artificial intelligence to replace tasks usually done by its contractors. [58] [59] In March 2024, the widget feature was also on Android. [60] In 2024, Duolingo acquired Detroit-based design studio Hobbes. [61] In August 2024, Duolingo introduced Friend Streak, [62] allowing students to share a streak together with their friends.
On Duolingo, learners learn by engaging with the language. Users complete lessons using words they are learning. [63] Duolingo uses a gamified approach to language learning, with lessons that incorporate translating, interactive exercises, quizzes, and stories. [64] It also uses an algorithm that adapts to each learner and can provide personalized feedback and recommendations. Lessons are designed to be brief, allowing users to learn in manageable chunks. [65] [66] The app has a personalized bandit algorithm system (later the A/B tested variant recovering difference softmax algorithm ) that determines the daily notification that will be sent out to the user. [67]
Duolingo provides a competitive space, [68] such as in Leagues, where people can compete with randomly selected worldwide player groupings of up to 30 users. Users can also create their own avatars and compete against each other in Duolingo Clash. [69] [70] Rankings in Leagues are determined by the amount of "XP" (experience points) earned in a week. Badges in Duolingo represent achievements earned from completing specific objectives. [71]
Duolingo has a widget feature on iOS and Android. The widget feature initially started as Duolingo's annual hackathon project. The iOS widget has 39 illustrations designed by Kyle Ruane that were intended to be another daily reminder to complete lessons. On the top part of the widgets is the user's daily streak. On the Duolingo Blog, they wrote that they "decided to come up with a series of illustrations that would show Duo’s mood at different parts of the day". [60] Any lesson completed in Duolingo will count towards the user's daily streak. [72] The daily streak's visual symbol in the app is fire. Duolingo’s "Friend Streak" lets users maintain streaks with up to five friends. [73]
Duolingo for Schools is designed to help teachers use Duolingo in their classrooms. It allows teachers to create classrooms, assign lessons, track student progress, and personalize learning. [74]
Most of Duolingo's language learning features are free, with periodic advertising in its mobile and web browser applications, which users can remove by paying a subscription fee or promoting referral links. [75] This program, known as Super Duolingo, includes benefits such as unlimited hearts (retries), level-skipping, no ads, and progress quizzes. [76]
Duolingo Max is a subscription above Super Duolingo that adds additional functions using generative AI: Role Play, an AI conversation partner, and Explain My Answer, which breaks down the rules with a modified GPT-4 when the user makes a mistake; users can also have video chat with one of the characters. Intended to provide further immersion through "free-flowing conversation", [77] it is available on the iOS version of the Duolingo app in selected courses and markets for English speakers. [78]
Duolingo ABC is a free app designed for young children to learn letters, their sounds, phonics, and other early reading concepts. Released in 2020, it does not contain ads or in-app purchases. As of April 2024, iOS and Android versions are available, but only in English. [6] [79] [80]
Duolingo Math is an app course for learning elementary mathematics. It was announced on YouTube on August 27, 2022, at the Duocon 2022 event. [81] Duolingo Math covers math topics through an interactive and gradual approach. It starts with basic arithmetic—addition, subtraction, multiplication, and division. The app also teaches fractions and decimals, focusing on comparing, converting, and calculating. Geometry lessons include understanding shapes, calculating area and volume. Measurement is another focus, with exercises on using and converting different units like length and time.
In March 2023, Duolingo was reportedly developing a new music course that would allow users to learn how to read and play music through its gamified learning experience. [82] [83] On October 11, 2023, Duolingo formally unveiled Duolingo Music in a YouTube Short, [57] a new platform within the existing app that provides basic music learning through piano, drums, and sheet music lessons. [84] [85] As of April 2024 [update] , it is currently available on iOS and Android devices. [86] Since 2024, users can practice music by playing pop songs in the course. [87]
The Duolingo English Test (DET) is an online English proficiency test that measures proficiency in reading, writing, speaking, and listening in English. It is a computer-based test scored on a scale of 10–160, with scores above 120 considered English proficiency. The test's questions algorithmically adjust to the test-takers' ability level. The test's certificate is reportedly accepted by over 5,000 programs internationally, [88] albeit with exceptions. [89]
Duolingo operates on a freemium business model, offering free access to its learning platforms with ads. Revenue is primarily generated through subscriptions, which remove ads, and provide other perks like unlimited hearts and generative AI. The app also generates income from in-app purchases of virtual currency (Gems) and power-ups that enhance the learning experience. Another key revenue stream is the Duolingo English Test (DET), a low-cost English proficiency test. [90]
In April 2020, it passed one million paid subscribers; [91] it reached 2.9 million in March 2022, [92] and 4.8 million at the end of March 2023. [93] As of June 2024 Duolingo has 8 million paying subscribers.
Duolingo had revenue of $531 million in 2023, compared to $250.77 million in 2021, [94] $36 million in 2018, [95] $13 million in 2017, [45] and $1 million in 2016. In May 2022, it was reported that 6.8% of its monthly active users paid for the ad-free version of the app. [96]
A 2017 study found no significant difference between elementary students learning Spanish through the "gamification" of the Duolingo app and those learning in classroom environments, with both groups demonstrating a similar increase in achievements and self-efficacy. [97]
Duolingo's occasional use of 'erratic' phrases—such as "The bride is a woman and the groom is a hedgehog" or "The man eats ice cream with mustard" [98] —is reportedly derived from research published in 2018 by psychologists at Ghent University in Belgium, [99] which concluded that such "semantically unpredictable sentences" were more effective for language learning than conventional and predictable phrases, based on the concept of "reward prediction errors", in which unexpected or surprising outcomes are more rewarding and thus encourage further learning. [100] [98]
A 2022 study on adults using Duolingo as their only language learning tool, published in the journal Foreign Language Annals , found that participants who completed a course had similar reading and listening proficiency to university students after four semesters of study, concluding that Duolingo could be an effective tool for language learning. [101] Another 2022 study of Malaysian students learning French, published by the National University of Malaysia Press, found that the app facilitated the acquisition of vocabulary and concluded that it was "well suited" for beginners in this regard. [102]
According to Duolingo's own 2021 study, five sections of the app are roughly equivalent to five semesters of university instruction, and Duolingo is an "effective tool [...] at an intermediate level". [103] [104] A 2023 study funded by Duolingo concluded that Duolingo English learners did not significantly learn much grammar. [105] Duolingo English learners in Colombia and Spain were found to gain significantly more proficiency than students in a classroom, except for listening. [106]
Some language professionals have criticized the app for its limitations and gamified design. [107] Others have pointed out that Duolingo and similar apps can be a starting point but lack the human interaction required to be fluent in a language and for real-life conversations. [108] For instance, Bruno Estigarribia stated that, as of 2019, the Guarani course was "seemingly in a development phase" and that it "had many inconsistencies". He added it could serve as a complement to one's studies, but it would not "magically teach" the language. [109] Players have also reported that "gamification" has led to cheating, hacking, and incentivized game strategies that conflict with actual learning. [110]
In March 2022, Duolingo forums were discontinued, [111] and Sentence discussions became read-only. [112] The change has been criticized on some social media sites.
In January 2023, Duolingo's data on over 2.6 million users' usernames, names, and phone numbers was sold in a hacker forum. Duolingo later stated that they would investigate the "dark web post". [113] They concluded that the data was obtained by scraping publicly available information based on an exposed application programming interface (API). [114] [115] Duolingo's spokesperson states that the API is intentionally publicly visible.
Since the end of October 2023, Duolingo has stopped updating its Welsh course to "focus on languages in higher demand". Some users criticized this decision because it came at the expense of learners of a language with limited resources on the market and the potential halting of the Welsh Government 's "Cymraeg 2050" strategy to promote Welsh language learning. [116] [117]
In 2013, Apple chose Duolingo as its iPhone App of the Year, a first for an educational application. [118] That year, Duolingo ranked No. 7 on Fast Company 's "The World's Most Innovative Companies: Education Honorees" list "for crowdsourcing web translation by turning it into a free language-learning program". [119] [120] [121] Duolingo won Best Education Startup at the 2014 Crunchies, [122] [123] and was the most downloaded 'education app' in Google Play in 2013 and 2014. [124] In July 2020, PCMag named it "The Best Free Language Learning App". [125]
As a company, Duolingo has likewise won several awards and recognitions. In 2015, it was announced as that year's Index Award winner in the Play & Learning category by The Index Project. [126] It won Inc. magazine's Best Workplaces 2018, [127] made Entrepreneur magazine's Top Company Culture List 2018, [128] was among CNBC's "Disruptor 50" lists for 2018 and 2019, [129] [130] [131] and was ranked as one of TIME magazine's 50 Genius Companies. [132] Duolingo was named one of Forbes 's "Next Billion-Dollar Startups 2019". [133] In 2023, Duolingo won a Design Award during the 2023 edition of the Apple Design Awards. [134]
Duolingo has brand characters that were used for engagement. [135] [136] Some of these characters include:
All characters mentioned above are human, with the exceptions of Duo, who is an owl, and Oscar, who is a bear.
Due to the app's frequent reminder notifications, Duolingo's mascot, a green cartoon owl named Duo, has been the subject of Internet memes depicting him as "evil" and stalking and threatening users if they do not keep using the app. [137] [138]
Duolingo has leaned into its online reputation and has adjusted its social media and marketing strategies accordingly. [139] Acknowledging the meme, Duolingo released a video on April Fools' Day 2019, depicting a facetious new feature called "Duolingo Push". In the video, users of "Duolingo Push" are reminded to use the app by Duo himself (depicted by a person wearing a Duolingo mascot costume), who stares at and follows them until they comply. [140] [141] It was also acknowledged during Duolingo's 2022 April Fools' Day video, "Lawyer Fights Duolingo Owl for $2,700,000", where a fictitious law firm fights for those that have been harmed by Duolingo's owl mascot. [142] This was further referenced by the company in its 2024 April Fools' Day skit "Duo on Ice", in which the owl, in a mix of Spanish and English, admitted to having an appetite for human flesh, and if the user failed to continue their streak, they would "eat their head like a praying mantis." [143] In February 2020, as part of the company's partnership with Angry Birds 2 , a skit video depicting Duo and the red Angry Bird attacking people was uploaded. [144]
In November 2019, Saturday Night Live parodied Duolingo in a sketch where adults learned to communicate with children by using a fictitious course called "Duolingo for Talking to Children". [145]
The 2023 film Barbie contains a running gag where the husband of disgruntled Mattel employee Gloria uses Duolingo to learn Spanish, Gloria's native language.
Duocon is Duolingo's annual conference, launched in 2019, aimed at gathering Duolingo users, language enthusiasts, and educational technology professionals. The conference serves as a platform to share the latest updates, features, and future plans of the app, while also exploring broader topics related to language learning and technology.
The inaugural Duocon in 2019 featured presentations from Duolingo’s team, interactive sessions, and announcements about new developments. The 2020 event was adapted to a virtual format due to the COVID-19 pandemic. Subsequent events have also been held online. [146]
Duo's Taqueria is a taqueria (a Mexican taco restaurant) in Pittsburgh, Pennsylvania, operated by Duolingo. The taqueria offers a variety of authentic Mexican tacos and other traditional dishes. [147] The restaurant encourages patrons to order in Spanish, aligning with Duolingo's mission of making language learning fun and accessible. Duolingo’s taco shop brought in $700,000 in 2023. [148]
Duolingo is headquartered in Pittsburgh, Pennsylvania, and has offices in Seattle, New York, [149] Detroit, [150] Beijing, and Berlin.
In 2024, Duolingo has inaugurated its new office in New York City, featuring a distinct Duolingo art gallery where the company's characters are depicted in the style of famous historical paintings. The gallery showcases moving images of Duo and other characters in a range of artistic styles. [151] [152]
Yandex LLC is a Russian multinational technology company providing Internet-related products and services, including an Internet search engine called Yandex Search, launched in 1997, information services, e-commerce, transportation, maps and navigation, mobile applications, and online advertising. Yandex Holding Company was incorporated in 2000. As of 2016, it primarily served audiences in Russia, Kazakhstan, Belarus, Ukraine, Turkey and countries with a significant Russian-speaking population.
Luis von Ahn is a Guatemalan entrepreneur, software developer, and consulting professor in the Computer Science Department at Carnegie Mellon University in Pittsburgh, Pennsylvania. He is known as one of the pioneers of crowdsourcing. He is the founder of the company reCAPTCHA, which was sold to Google in 2009, and the co-founder and CEO of Duolingo.
Babbel GmbH, operating as Babbel, is a German subscription-based language learning software and e-learning platform, available in various languages since January 2008.
Deezer is a French music streaming service founded in 2007. The company has been a subsidiary of Access Industries since 2016. Deezer is available via web and on various digital platforms, including Android, iOS, macOS and others.
Dropbox is a file hosting service operated by the American company Dropbox, Inc., headquartered in San Francisco, California, U.S. that offers cloud storage, file synchronization, personal cloud, and client software. Dropbox was founded in 2007 by MIT students Drew Houston and Arash Ferdowsi as a startup company, with initial funding from seed accelerator Y Combinator.
Spotify is a Swedish audio streaming and media service provider founded on 23 April 2006 by Daniel Ek and Martin Lorentzon. As of June 2024, it is one of the largest providers of music streaming services, with over 626 million monthly active users comprising 246 million paying subscribers. Spotify is listed on the New York Stock Exchange in the form of American depositary receipts.
Quizlet is a multi-national American company that provides tools for studying and learning. Quizlet was founded in October 2005 by Andrew Sutherland, who at the time was a 15-year old student, and released to the public in January 2007. Quizlet's primary products include digital flash cards, matching games, practice electronic assessments, and live quizzes. In 2017, 1 in 2 high school students used Quizlet. As of December 2021, Quizlet has over 500 million user-generated flashcard sets and more than 60 million active users.
Shopify Inc., stylized as shopify, is a Canadian multinational e-commerce company headquartered in Ottawa, Ontario. Shopify is the name of its proprietary e-commerce platform for online stores and retail point-of-sale systems. The platform offers online retailers a suite of services including; payments, marketing, shipping and customer engagement tools.
Quora is a social question-and-answer website and online knowledge market headquartered in Mountain View, California. It was founded on June 25, 2009, and made available to the public on June 21, 2010. Users can collaborate by editing questions and commenting on answers that have been submitted by other users. As of 2020, the website was visited by 300 million users a month.
Memrise is a British language platform that uses spaced repetition of flashcards to increase the rate of learning. It is based in London, UK.
Instagram is a photo and video sharing social networking service owned by Meta Platforms. It allows users to upload media that can be edited with filters, be organized by hashtags, and be associated with a location via geographical tagging. Posts can be shared publicly or with preapproved followers. Users can browse other users' content by tags and locations, view trending content, like photos, and follow other users to add their content to a personal feed. A Meta-operated image-centric social media platform, it is available on iOS, Android, Windows 10, and the web. Users can take photos and edit them using built-in filters and other tools, then share them on other social media platforms like Facebook. It supports 32 languages including English, Hindi, Spanish, French, Korean, and Japanese.
WhatsApp is an instant messaging (IM) and voice-over-IP (VoIP) service owned by technology conglomerate Meta. It allows users to send text, voice messages and video messages, make voice and video calls, and share images, documents, user locations, and other content. WhatsApp's client application runs on mobile devices, and can be accessed from computers. The service requires a cellular mobile telephone number to sign up. In January 2018, WhatsApp released a standalone business app called WhatsApp Business which can communicate with the standard WhatsApp client.
Pinterest is an American social media service for publishing and discovery of information in the form of pinboards. This includes recipes, home, style, motivation, and inspiration on the Internet using image sharing. Pinterest, Inc. was founded by Ben Silbermann, Paul Sciarra, and Evan Sharp, and is headquartered in San Francisco.
Codecademy is an American online interactive platform that offers free coding classes in 12 different programming languages including Python, Java, Go, JavaScript, Ruby, SQL, C++, C#, and Swift, as well as markup languages HTML and CSS. The site also offers a paid "Pro" option that gives users access to personalized learning plans, quizzes, and realistic projects.
Wunderlist is a discontinued cloud-based task management application. It allowed users to create lists to manage their tasks from a smartphone, tablet, computer and smartwatch. Wunderlist was free; additional collaboration features were available in a paid version known as Wunderlist Pro, released April 2013.
Severin Hacker is a Swiss computer scientist who is the co-founder and CTO of Duolingo, the world's most popular language-learning platform.
Lingua.ly was an EdTech startup that took a digital language immersion approach to teaching languages. The company was founded by Jan Ihmels and Orly Furhman, two academics from Cambridge and Stanford respectively. Lingua.ly operated under the freemium business model and existed as a Cloud-based web app and mobile app available for Android and iOS.
Google Cloud Platform (GCP) is a suite of cloud computing services offered by Google that provides a series of modular cloud services including computing, data storage, data analytics, and machine learning, alongside a set of management tools. It runs on the same infrastructure that Google uses internally for its end-user products, such as Google Search, Gmail, and Google Docs, according to Verma et al. Registration requires a credit card or bank account details.
Preply is an online language learning marketplace, connecting tutors to hundreds of thousands of learners in 180 countries worldwide. More than 35,000 tutors teach over 50 languages, powered by a machine-learning algorithm that recommends the best tutors for each learner.
Instead, the company is now using its Test Center certification program as a revenue source (the tests cost $20) and says that it has other plans to monetize.
{{cite web}}
: CS1 maint: others (link)