D

Duolingo

DUOL

Application

Language-learning app whose AI features are the product's growth edge rather than a bolt-on: Duolingo Max adds Video Call and Roleplay on top of the free course, Explain My Answer is now free for every learner, and the company's own filing says AI generates learning content at scale.

Total funding—

Market cap$7.3B

Employees900

Founded2011

HeadquartersPittsburgh, USA

StatusPublic

Products

Selected offerings — the AI products recorded here, not the vendor's full catalogue.

• Duolingo English Test Application Sold on its own

  An online English proficiency exam scored by machine learning and accepted by institutions worldwide, with results in two days.

Inside Duolingo subscription tiers

• Duolingo Max Application Paid add-on to the parent

  The subscription tier where the AI features live: Video Call with an animated tutor, Roleplay conversations and Explain My Answer, sitting on top of everything Super already removes from the free course.

Closest alternatives 1

SSpeakPrivate · $162M raisedForbes frames Speak's whole business as racing Duolingo, its 'biggest rival', in AI-driven language tutoring, and cites Duolingo's much larger revenue directly against Speak's. Duolingo Max is Duolingo's AI-tutoring product; both it and Speak carry generate-speech-audio.3 of 4 capabilitiesShared product typeSourced competitorCreate synthetic voice and audioCompare

Similar products 92

How this list is ranked ↗

RSRosetta StoneAcquiredDuolingo English Test and Rosetta Stone Sapphire do comparable work on education and tutoring and speech to text; Rosetta Stone is acquired, with no independent scale.2 of 4 capabilitiesShared product typeCompareWFWispr FlowPrivate · $2BDuolingo English Test and Wispr Flow Notetaker do comparable work on speech to text; both also serve buyers who need to turn speech into text; smaller scale (private).2 of 4 capabilitiesShared product typeSmaller scaleCompareBBridgeMindPrivateDuolingo English Test and BridgeVoice do comparable work on speech to text; both also serve buyers who need to turn speech into text; BridgeMind's scale not recorded.1 of 4 capabilitiesShared product typeCompareAApplePublic · $4.6TDuolingo Max and Siri AI do comparable work on voice agent; both also serve buyers who need to draft and edit written content; larger scale (public).2 of 4 capabilitiesShared product typeLarger scaleCompareKKakaoPublic · $16BDuolingo Max and Kanana in KakaoTalk both serve buyers who need to draft and edit written content; larger scale (public).2 of 4 capabilitiesShared product typeLarger scaleCompareZZoomPublic · $28.7BDuolingo English Test and Zoom My Notes do comparable work on speech to text; both also serve buyers who need to turn speech into text; larger scale (public).3 of 4 capabilitiesShared product typeLarger scaleCompareGGranolaPrivate · $1.5BDuolingo English Test and Granola do comparable work on speech to text; both also serve buyers who need to turn speech into text; smaller scale (private).1 of 4 capabilitiesShared product typeSmaller scaleCompareCCrestaPrivate · $1.6BDuolingo Max and Training Simulator do comparable work on education and tutoring; smaller scale (private).2 of 4 capabilitiesShared product typeSmaller scaleCompareDDeepLPrivate · $2BDuolingo English Test and DeepL Voice for Conversations do comparable work on speech to text; both also serve buyers who need to turn speech into text; smaller scale (private).2 of 4 capabilitiesShared product typeSmaller scaleCompareLLinagoraPrivateDuolingo English Test and LinTO do comparable work on speech to text; both also serve buyers who need to turn speech into text; Linagora's scale not recorded.1 of 4 capabilitiesShared product typeCompareAAbridgePrivate · $5.3BDuolingo English Test and Abridge do comparable work on speech to text; both also serve buyers who need to turn speech into text; similar scale (private).1 of 4 capabilitiesShared product typeCompareYYandexPublicDuolingo Max and Alice AI do comparable work on voice agent; both also serve buyers who need to draft and edit written content; Yandex's scale not recorded.3 of 4 capabilitiesShared product typeCompareOOtter.aiPrivateDuolingo English Test and OtterPilot do comparable work on speech to text; both also serve buyers who need to turn speech into text; Otter.ai's scale not recorded.1 of 4 capabilitiesShared product typeCompareNNotionPrivate · $11BDuolingo English Test and Notion AI Meeting Notes do comparable work on speech to text; both also serve buyers who need to turn speech into text; similar scale (private).2 of 4 capabilitiesShared product typeCompareGGenesysPrivateDuolingo English Test and Conversational Intelligence do comparable work on speech to text; both also serve buyers who need to turn speech into text; smaller scale (private).3 of 4 capabilitiesShared product typeCompareGGensparkPrivate · $645M raisedDuolingo English Test and Speakly do comparable work on speech to text; both also serve buyers who need to turn speech into text; similar scale (private).1 of 4 capabilitiesShared product typeCompareKKrispPrivateDuolingo English Test and Krisp do comparable work on speech to text; both also serve buyers who need to turn speech into text; Krisp's scale not recorded.1 of 4 capabilitiesShared product typeCompareFFathomAcquiredDuolingo English Test and Fathom do comparable work on speech to text; both also serve buyers who need to turn speech into text; Fathom is acquired, with no independent scale.1 of 4 capabilitiesShared product typeCompareAAdobePublic · $115.9BDuolingo English Test and Adobe Podcast do comparable work on speech to text; both also serve buyers who need to turn speech into text; larger scale (public).2 of 4 capabilitiesShared product typeLarger scaleCompareKHKakao HealthcarePrivateDuolingo English Test and PASTA do comparable work on speech to text; both also serve buyers who need to turn speech into text; Kakao Healthcare's scale not recorded.2 of 4 capabilitiesShared product typeCompareEElevenLabsPrivate · $11BDuolingo English Test and Scribe do comparable work on speech to text; both also serve buyers who need to turn speech into text; similar scale (private).2 of 4 capabilitiesShared product typeCompareCCerencePublic · $384.9MDuolingo Max and Car Knowledge do comparable work on voice agent; smaller scale (public).2 of 4 capabilitiesShared product typeSmaller scaleCompareXXiao-iPublicDuolingo Max and Xiao-i cognitive intelligence platform do comparable work on voice agent; both also serve buyers who need to draft and edit written content; smaller scale (public).2 of 4 capabilitiesShared product typeCompareFRFurhat RoboticsPrivateDuolingo Max and FurhatAI do comparable work on voice agent; both also serve buyers who need to draft and edit written content; Furhat Robotics's scale not recorded; ships platform and robot rather than the same layer.3 of 4 capabilitiesDifferent layerCompareEEvenUpPrivate · $2BDuolingo Max and EvenUp AI Drafts both serve buyers who need to draft and edit written content; smaller scale (private).1 of 4 capabilitiesShared product typeSmaller scaleCompareIIBMPublic · $216.6BDuolingo English Test and IBM Watson Speech to Text do comparable work on speech to text; both also serve buyers who need to turn speech into text; larger scale (public).3 of 4 capabilitiesShared product typeLarger scaleCompareSServiceNowPublic · $130.1BDuolingo Max and ServiceNow Otto do comparable work on voice agent; both also serve buyers who need to draft and edit written content; larger scale (public).2 of 4 capabilitiesShared product typeLarger scaleCompareCCartesiaPrivateDuolingo English Test and Sonic / Ink do comparable work on speech to text; both also serve buyers who need to turn speech into text; Cartesia's scale not recorded; ships API service rather than the same layer.1 of 4 capabilitiesDifferent layerCompareVSVerint SystemsAcquiredDuolingo English Test and Verint Da Vinci AI and Bots do comparable work on speech to text; both also serve buyers who need to turn speech into text; Verint Systems is acquired, with no independent scale.1 of 4 capabilitiesShared product typeCompareMMicrosoftPublic · $3.7TDuolingo Max and Microsoft Copilot both serve buyers who need to draft and edit written content; larger scale (public).2 of 4 capabilitiesShared product typeLarger scaleCompareAAmazonPublic · $2.8TDuolingo English Test and Amazon Transcribe do comparable work on speech to text; both also serve buyers who need to turn speech into text; larger scale (public).2 of 4 capabilitiesShared product typeLarger scaleCompareRRingCentralPublic · $2.3BDuolingo English Test and AI Conversation Expert (ACE) do comparable work on speech to text; same layer and the same scale band (small-cap).1 of 4 capabilitiesShared product typeSame scale bandCompareSASoundHound AIPublic · $3.1BDuolingo Max and SoundHound Music App do comparable work on voice agent; same layer and the same scale band (small-cap).1 of 4 capabilitiesShared product typeSame scale bandCompareFFirefliesPrivateDuolingo English Test and Fireflies.ai meeting assistant do comparable work on speech to text; Fireflies's scale not recorded.1 of 4 capabilitiesShared product typeCompareCCaptionsPrivate · $500MDuolingo English Test and Captions do comparable work on speech to text; smaller scale (private).1 of 4 capabilitiesShared product typeSmaller scaleCompareLLListen LabsPrivate · $100M raisedDuolingo Max and Listen do comparable work on voice agent; similar scale (private).1 of 4 capabilitiesShared product typeCompareAHAmbience HealthcarePrivate · $1.3BDuolingo English Test and Ambience do comparable work on speech to text; smaller scale (private).1 of 4 capabilitiesShared product typeSmaller scaleCompareOOraclePublic · $454.4BDuolingo English Test and OCI Speech do comparable work on speech to text; both also serve buyers who need to turn speech into text; larger scale (public).2 of 4 capabilitiesShared product typeLarger scaleCompareTTwilioPublic · $36.5BDuolingo English Test and Conversation Intelligence do comparable work on speech to text; both also serve buyers who need to turn speech into text; larger scale (public).2 of 4 capabilitiesShared product typeLarger scaleCompareZZendeskPrivate · $10.2BDuolingo Max and Zendesk Copilot both serve buyers who need to draft and edit written content; similar scale (private).2 of 4 capabilitiesShared product typeCompareEEliseAIPrivate · $384M raisedDuolingo Max and AI-Guided Tours do comparable work on voice agent; similar scale (private).1 of 4 capabilitiesShared product typeCompareRRunwayPrivate · $5.3BDuolingo Max and Runway Characters do comparable work on voice agent; similar scale (private).1 of 4 capabilitiesShared product typeCompareAAtlassianPublic · $48.2BDuolingo Max and Customer Service Management do comparable work on voice agent; larger scale (public).1 of 4 capabilitiesShared product typeLarger scaleCompareSSierraPrivate · $15.8BDuolingo Max and Channels do comparable work on voice agent; larger scale (private).2 of 4 capabilitiesShared product typeLarger scaleCompareCCognigyAcquiredDuolingo Max and Cognigy Voice Gateway do comparable work on voice agent; Cognigy is acquired, with no independent scale.1 of 4 capabilitiesShared product typeCompareUUniphorePrivate · $2.5BDuolingo English Test and Communication Recording Agent do comparable work on speech to text; both also serve buyers who need to turn speech into text; smaller scale (private).2 of 4 capabilitiesShared product typeSmaller scaleCompareNCNAVER CloudPrivateDuolingo English Test and CLOVA Note do comparable work on speech to text; both also serve buyers who need to turn speech into text; NAVER Cloud's scale not recorded.3 of 4 capabilitiesShared product typeCompareMAMistral AIPrivate · $13.8BDuolingo Max and Mistral Vibe both serve buyers who need to draft and edit written content; similar scale (private).3 of 4 capabilitiesShared product typeCompareTTencentPublic · $510.1BDuolingo Max and Tencent Yuanbao both serve buyers who need to draft and edit written content; larger scale (public).2 of 4 capabilitiesShared product typeLarger scaleCompareTBThe Browser CompanyPrivateDuolingo Max and Arc Max both serve buyers who need to draft and edit written content; The Browser Company's scale not recorded.1 of 4 capabilitiesShared product typeCompareAAssemblyAIPrivate · $115M raisedDuolingo English Test and AssemblyAI Universal Speech-to-Text API do comparable work on speech to text; both also serve buyers who need to turn speech into text; similar scale (private); ships API service rather than the same layer.1 of 4 capabilitiesDifferent layerCompareCCluelyPrivate · $15M raisedDuolingo Max and Cluely both serve buyers who need to draft and edit written content; similar scale (private).1 of 4 capabilitiesShared product typeCompareXxAIAcquired ($230B deal)Duolingo Max and Grok do comparable work on voice agent; both also serve buyers who need to draft and edit written content; xAI is acquired, with no independent scale.3 of 4 capabilitiesShared product typeCompareSStepFunPrivate · $10BDuolingo English Test and 阶跃AI (StepFun AI) do comparable work on speech to text; both also serve buyers who need to turn speech into text; similar scale (private).3 of 4 capabilitiesShared product typeCompareSASarvam AIPrivate · $275M raisedDuolingo Max and Sarvam Voice Agents do comparable work on voice agent; similar scale (private).3 of 4 capabilitiesShared product typeCompareSSpeechmaticsPrivateDuolingo English Test and On-Device Speech to Text do comparable work on speech to text; both also serve buyers who need to turn speech into text; Speechmatics's scale not recorded; ships API service and developer tool rather than the same layer.2 of 4 capabilitiesDifferent layerCompareCCrescendoPrivate · $500MDuolingo Max and Crescendo Concierge do comparable work on voice agent; smaller scale (private); ships AI agent rather than the same layer.1 of 4 capabilitiesDifferent layerSmaller scaleCompareFFive9Public · $2.7BDuolingo Max and Five9 Genius AI do comparable work on voice agent; ships platform rather than the same layer.1 of 4 capabilitiesDifferent layerSame scale bandComparePParloaPrivate · $3BDuolingo Max and Parloa AMP do comparable work on voice agent; smaller scale (private); ships AI agent rather than the same layer.1 of 4 capabilitiesDifferent layerSmaller scaleCompareAHAssort HealthPrivate · $1.2BDuolingo Max and Assort Concierge do comparable work on voice agent; smaller scale (private); ships AI agent rather than the same layer.1 of 4 capabilitiesDifferent layerSmaller scaleCompareHAHippocratic AIPrivate · $3.5BDuolingo Max and Hippocratic AI Healthcare Agents do comparable work on voice agent; smaller scale (private); ships AI agent rather than the same layer.1 of 4 capabilitiesDifferent layerSmaller scaleCompareJJasperPrivateDuolingo Max and Jasper AI Studio both serve buyers who need to draft and edit written content; Jasper's scale not recorded.1 of 4 capabilitiesShared product typeCompareSESamsung ElectronicsPublic · $1.2TDuolingo English Test and Bixby do comparable work on speech to text; both also serve buyers who need to turn speech into text; larger scale (public).3 of 4 capabilitiesShared product typeLarger scaleCompareHHyperWritePrivateDuolingo Max and HyperWrite both serve buyers who need to draft and edit written content; HyperWrite's scale not recorded.1 of 4 capabilitiesShared product typeCompareHHubSpotPublic · $13BDuolingo Max and AI Blog Writer both serve buyers who need to draft and edit written content; similar scale (public).1 of 4 capabilitiesShared product typeCompareKKuaishouPublic · $18.6BDuolingo English Test and CyberCut do comparable work on speech to text; both also serve buyers who need to turn speech into text; larger scale (public).1 of 4 capabilitiesShared product typeLarger scaleCompareWWritesonicPrivateDuolingo Max and Writesonic AI Article Writer both serve buyers who need to draft and edit written content; Writesonic's scale not recorded.1 of 4 capabilitiesShared product typeCompareSSuperhumanPrivateDuolingo Max and Grammarly both serve buyers who need to draft and edit written content; Superhuman's scale not recorded.1 of 4 capabilitiesShared product typeCompareDDeepgramPrivate · $1.3BDuolingo English Test and Deepgram Audio Intelligence do comparable work on speech to text; both also serve buyers who need to turn speech into text; smaller scale (private); ships API service rather than the same layer.2 of 4 capabilitiesDifferent layerSmaller scaleCompareCCiscoPublic · $433.3BDuolingo English Test and AI Assistant for Webex Contact Center do comparable work on speech to text; both also serve buyers who need to turn speech into text; larger scale (public).2 of 4 capabilitiesShared product typeLarger scaleCompareMmonday.comPublic · $3.9BDuolingo Max and monday campaigns both serve buyers who need to draft and edit written content; same layer and the same scale band (small-cap).Shared product typeSame scale bandCompareGGammaPrivate · $2.1BDuolingo Max and Gamma both serve buyers who need to draft and edit written content; smaller scale (private).1 of 4 capabilitiesShared product typeSmaller scaleCompareFAFireworks AIPrivate · $17.5BDuolingo English Test and Fireworks Speech Recognition do comparable work on speech to text; both also serve buyers who need to turn speech into text; larger scale (private); ships API service and model API rather than the same layer.1 of 4 capabilitiesDifferent layerLarger scaleCompareHCHuawei CloudPrivateDuolingo English Test and Short Sentence Recognition do comparable work on speech to text; both also serve buyers who need to turn speech into text; Huawei Cloud's scale not recorded.1 of 4 capabilitiesShared product typeCompareSSalesforcePublic · $196.1BDuolingo Max and Agentforce Marketing both serve buyers who need to draft and edit written content; larger scale (public).Shared product typeLarger scaleCompareCCanvaPrivate · $42BDuolingo Max and Magic Write both serve buyers who need to draft and edit written content; larger scale (private).1 of 4 capabilitiesShared product typeLarger scaleCompareCCopy.aiAcquired ($13.9M deal)Duolingo Max and Copy.ai Brand Voice both serve buyers who need to draft and edit written content; Copy.ai is acquired, with no independent scale.Shared product typeComparePProfoundPrivateDuolingo Max and Profound AI Marketer both serve buyers who need to draft and edit written content; Profound's scale not recorded.Shared product typeCompareTTypefacePrivateDuolingo Max and Typeface Arc Graph both serve buyers who need to draft and edit written content; Typeface's scale not recorded.Shared product typeCompareAAlphabet (Google)Public · $4.2TDuolingo English Test and Cloud Speech-to-Text do comparable work on speech to text; both also serve buyers who need to turn speech into text; larger scale (public).3 of 4 capabilitiesShared product typeLarger scaleCompareRAResemble AIPrivateDuolingo Max and Security Awareness Training do comparable work on voice agent; Resemble AI's scale not recorded.2 of 4 capabilitiesShared product typeCompareDDocusignPublic · $12.7BDuolingo Max and Docusign AI-Assisted Review both serve buyers who need to draft and edit written content; similar scale (public).1 of 4 capabilitiesShared product typeCompareOOpenAIPrivate · $852BDuolingo Max and ChatGPT Gov both serve buyers who need to draft and edit written content; larger scale (private).2 of 4 capabilitiesShared product typeLarger scaleCompareIInception42PrivateDuolingo Max and InceptionClaw both serve buyers who need to draft and edit written content; Inception42's scale not recorded.1 of 4 capabilitiesShared product typeCompareLLegoraPrivate · $5.6BDuolingo Max and Legora Editor both serve buyers who need to draft and edit written content; similar scale (private).Shared product typeCompareIMInsilico MedicinePublic · $4.3BDuolingo Max and Science42: DORA both serve buyers who need to draft and edit written content; same layer and the same scale band (small-cap).1 of 4 capabilitiesShared product typeSame scale bandComparePPresightPublic · $5.6BDuolingo Max and Presight Vitruvian both serve buyers who need to draft and edit written content; same layer and the same scale band (small-cap).1 of 4 capabilitiesShared product typeSame scale bandCompare44ParadigmPublic · $2BDuolingo Max and 4Paradigm SageGPT both serve buyers who need to draft and edit written content; same layer and the same scale band (small-cap).1 of 4 capabilitiesShared product typeSame scale bandComparePPerplexityPrivate · $20.4BDuolingo Max and Perplexity both serve buyers who need to draft and edit written content; larger scale (private).Shared product typeLarger scaleCompareBByteDancePrivateDuolingo Max and TraeWork both serve buyers who need to draft and edit written content; larger scale (private).1 of 4 capabilitiesShared product typeCompareFFreshworksPublic · $3.4BDuolingo Max and Freddy AI Copilot both serve buyers who need to draft and edit written content; same layer and the same scale band (small-cap).1 of 4 capabilitiesShared product typeSame scale bandCompareWWriterPrivate · $1.9BDuolingo Max and Writer both serve buyers who need to draft and edit written content; smaller scale (private).1 of 4 capabilitiesShared product typeSmaller scaleCompare

Closest alternatives are pairs a vendor page itself compares. Similar products are matched from what each product does; nothing in that group is asserted as a rivalry.

Sources

Total funding

Checked — none published

Listed on NASDAQ; pre-IPO funding is not the relevant figure and no total is published.

Market cap

Third-party database · 4 Sep 2026

Market capitalisation $7.27B, read 2026-09-04. Down 46.8% over the measured period while revenue rose 29.4% — a real repricing, not a units error.

Employees

Regulatory filing · 4 Sep 2026

FY2025 Form 10-K, in its own words: "As of December 31, 2025, we had more than 900 passionate employees, including more than 430 engineers." Recorded as 900 — the filing's own FLOOR, not an exact count.

Founded

Wikipedia · 4 Sep 2026

Infobox: founded 2011; Duolingo, Inc.; public; industry online education; key people Luis von Ahn (CEO), Severin Hacker (CTO).

Revenue (TTM)

Third-party database · 4 Sep 2026

$1.15B trailing twelve months, read 2026-09-04, in USD. The FY2025 10-K's own figure was $1.04B; the TTM figure is the fresher one and matches the basis this column records.

Description

Company disclosure · 6 Sep 2026

Duolingo's own post of 1 January 2026: "Explain My Answer—our popular in-lesson feedback feature available to subscribers—is now free for all Duolingo learners." Listing it as a Max addition was true when written and is not now.

Open Duolingo in the directory

Something wrong here? Send a correction — quote this company id: duolingo.