FAIR
可能会索取你的麦克风, 通讯录, 日历 +1权限
11 与你关联的数据类型
单次内购最高达$239.99
原因：看看他们如何向投资者说明麦克风👥通讯录📅日历📸屏幕截图检测由陪审团核验由企业自主声明从应用提取或测得
"Duolingo may anonymize your personal information, and use this de-identified data for any purpose, such as better understanding learning trends and training artificial intelligence models."
Their words, not yet tested. privacy policy · read from their site on 2026-11-12
"Your age, phone number, and email address are not included in your public Profile and are not considered Public Profile Information under this Privacy Policy."
Their words, not yet tested. privacy policy · read from their site on 2026-11-12
"After your initial subscription period, and again after any subsequent subscription period, your subscription will automatically renew for an additional equivalent period."
Their words, not yet tested. terms of service · read from their site on 2026-11-12
How this was checkedPolicy history
Screen recordings submitted to Abouit by users who stated they show cancelling or deleting their own account. Abouit did not record them and cannot verify who made them. Screens are counted by our published method. Submitted recordings are reported evidence: never a receipt, never part of a grade.
No receipt about Duolingo yet. read — waiting for review First look from Germany on 2026-11-09 (stopped) · privacy policy read 2026-11-12 · terms of service read 2026-11-12
What we checked in each of the six areas, and what we found there. Not a score: an empty area means not tested yet; "their words" means we quote their documents below but have not tested it. Planet is a seventh row of measured facts from the same first look: what the homepage weighs before any tap, and a CO2e range with its method.
not tested yet
not tested yet
not measured yet
Green claims and their support
How Duolingo's own help pages say you can reach a person, quoted as written on the date given. We did not contact them. Not tested by us; not a score.
None documented in the 2 pages we read. Its contact page could not be read by our reader, so this says nothing about what that page offers.
Pages read: “How do I cancel my Super Duolingo subscription?” (Cancel article · Internet Archive copy of 2024-06-20 · source · SHA-256 e100c920c3e3…); “How can I delete my account and data?” (Close-account article · Internet Archive copy of 2023-12-09 · source · SHA-256 4ed82266043a…)
Contact page: not read: its text did not reach our reader (often built by JavaScript) (page)
The company's own declarations, copied as shown on the date given, with a link to the source and the hash of our archived copy. Not tested by us; not a score.
App Store (US), as the listing showed it
2026-11-09 · source · SHA-256 97b81e4d29e3…
Google Play (US), as the listing showed it
2026-11-09 · source · SHA-256 b00acf4ffbe2…
Google Play Data safety page: not read: the site's robots.txt or the site itself refused our reader, and we never get around a refusal. 2026-11-09 · source
Cancelling, per its help centre: not read: the page our reader received had almost no readable text. 2026-11-09 · source
Closing the account, per its help centre: not read: the page our reader received had almost no readable text. 2026-11-09 · source
What an independent analysis of the published app file lists for Duolingo (Android version 6.104.5, report of 2026-11-05). A permission says what the app can ask the phone for, not what it does with it. A newer version may differ.
31 tracker SDKs: Adjust · Amazon Advertisement · AppLovin (MAX and SparkLabs) · Appodeal Stack · BidMachine · ChartBoost · Facebook Ads · Facebook Analytics · Facebook Login · Facebook Share · Fyber · Google AdMob · Google Firebase Analytics · HyprMX · IAB Open Measurement · Inmobi · ironSource · maio by i-mobile · Mintegral · myTarget · Ogury Presage · Pangle · Prebid Mobile · PubNative · Sentry · Smaato · SuperAwesome · Tapjoy · Unity3d Ads · Vungle · Yandex Ad
36 permissions, including: microphone RECORD_AUDIO · contacts READ_CONTACTS · calendar READ_CALENDAR · screenshot detection DETECT_SCREEN_CAPTURE · advertising ID AD_ID · notifications POST_NOTIFICATIONS
ACCESS_ADSERVICES_AD_ID · ACCESS_ADSERVICES_ATTRIBUTION · ACCESS_ADSERVICES_TOPICS · ACCESS_NETWORK_STATE · AD_SERVICES_CONFIG · BADGE_COUNT_READ · BADGE_COUNT_WRITE · BIND_GET_INSTALL_REFERRER_SERVICE · BROADCAST_BADGE · CHANGE_BADGE · DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION · FOREGROUND_SERVICE · GET_ACCOUNTS · MODIFY_AUDIO_SETTINGS · PROVIDER_INSERT_BADGE · READ_APP_BADGE · READ_EXTERNAL_STORAGE · READ_SETTINGS · RECEIVE_BOOT_COMPLETED · SCHEDULE_EXACT_ALARM · UPDATE_BADGE · UPDATE_COUNT · UPDATE_SHORTCUT · USE_BIOMETRIC · USE_FINGERPRINT · USE_FULL_SCREEN_INTENT · WAKE_LOCK · WRITE_CALENDAR · WRITE_EXTERNAL_STORAGE · WRITE_SETTINGS
Source: εxodus Privacy report, read 2026-11-10 · SHA-256 4f2423baedd1…
Sentences copied word for word from the latest annual report of the company behind Duolingo. Companies must tell investors what their business depends on.
“The majority of our revenue comes through our subscriptions and advertising streams and payments are made to Duolingo through service providers.”
Where the money comes from, in the company's own words.
Duolingo, Inc. · annual report (Form 10-K) filed with the US SEC on 2026-02-27 · source · SHA-256 7bd34eb75513…
“If we are unable to maintain or increase our user base and user engagement, our revenue and financial results may be materially adversely affected.”
In plain words: when people use it less, the company says its results suffer.
Duolingo, Inc. · annual report (Form 10-K) filed with the US SEC on 2026-02-27 · source · SHA-256 7bd34eb75513…
“As of December 31, 2025, our directors, executive officers, and 5% stockholders and their affiliates held in the aggregate 76.3% of the voting power of our capital stock.”
They decide how the app works. Users have no vote.
Duolingo, Inc. · annual report (Form 10-K) filed with the US SEC on 2026-02-27 · source · SHA-256 7bd34eb75513…
Duolingo, Inc. declares spending between €100,000 and €199,999 in a year on lobbying the EU institutions (Jan 2025 to Dec 2025).
People it declares working on this, in full-time equivalents: 1.
这是什么数字: This is the company's own declaration. The register does not audit it, and it covers everything the company does, not this app alone. EU only.
source · SHA-256 5da8403e700f…
Pick a style, then a format. Every card carries its date and a QR code back to this page.
Whole sentences copied exactly from Duolingo's own documents, grouped by subject. Their words, not yet tested: this is quotation, not a finding, and no jury has looked at it. Each sentence links to the archived copy it came from.
"Additionally, Duolingo may generate, record, and store audio recordings or transcripts of the text and audio you submit, and use these recordings or transcripts for product improvement and personalization purposes, including training and running Duolingo’s own artificial intelligence models."
privacy policy · read from their site on 2026-11-12
"Duolingo may anonymize your personal information, and use this de-identified data for any purpose, such as better understanding learning trends and training artificial intelligence models."
privacy policy · read from their site on 2026-11-12
"To register for a Duolingo account, you may provide us with a username, your age and email address."
privacy policy · read from their site on 2026-11-12
"Your age, phone number, and email address are not included in your public Profile and are not considered Public Profile Information under this Privacy Policy."
privacy policy · read from their site on 2026-11-12
"FullStory and Session Replay are disabled for Child Users."
privacy policy · read from their site on 2026-11-12
"If you purchase an auto-renewing periodic subscription through the Service, your Duolingo account will be billed continuously for the subscription until you terminate it as set forth below."
terms of service · read from their site on 2026-11-12
"After your initial subscription period, and again after any subsequent subscription period, your subscription will automatically renew for an additional equivalent period."
terms of service · read from their site on 2026-11-12
"If you do not wish your subscription to renew automatically, or if you want to change or terminate your subscription, you will need to log in to your Duolingo account and follow instructions to terminate or change your subscription, even if you have deleted your account."
terms of service · read from their site on 2026-11-12
"Individuals have the possibility, under certain conditions, to invoke binding arbitration for complaints regarding DPF compliance not resolved by any of the other DPF mechanisms."
privacy policy · read from their site on 2026-11-12
"Prior to initiating any arbitration, the party seeking arbitration (“Claimant”) must first send a written Notice of Claim to the other party (“Respondent”) by email or USPS Certified Mail."
terms of service · read from their site on 2026-11-12
"Arbitration shall be initiated only if no settlement can be reached at this settlement conference."
terms of service · read from their site on 2026-11-12
"If the AAA is unavailable to conduct an arbitration, the parties shall arbitrate through another mutually agreed upon organization or on an ad hoc basis according to the rules in this section."
terms of service · read from their site on 2026-11-12
"Duolingo may share personal information with third parties that help us provide or improve the Service, including hosting providers such as Amazon Web Services, search engine providers such as Google, analytics providers such as Crashlytics, support providers such as ZenDesk, and payment processors such as Stripe."
privacy policy · read from their site on 2026-11-12
"Duolingo may also share your information with third-party vendors that support product features such as AI, speech recognition, and content moderation."
privacy policy · read from their site on 2026-11-12
"Know what personal information about you we have shared with third parties."
privacy policy · read from their site on 2026-11-12
"Duolingo may retain, use, and share with AI vendors the text transcript as described above."
privacy policy · read from their site on 2026-11-12
"We will retain your IP address for no more than thirty (30) days, unless exceptional circumstances require longer retention."
privacy policy · read from their site on 2026-11-12
"If you purchase a Duolingo subscription and submit a payment method to Duolingo, Duolingo may retain your IP address for longer solely for purposes of payment processing and fraud prevention."
privacy policy · read from their site on 2026-11-12
"Duolingo and its licensors own and shall retain all intellectual property rights and other rights in and to the Apps, and any changes, modifications, or corrections thereto."
terms of service · read from their site on 2026-11-12
"If your Code Provider terminates your use of the Promotion Code, you will retain control of your Duolingo account and data, and may subscribe to Duolingo on your own."
terms of service · read from their site on 2026-11-12
"At Duolingo, we care about your personal information, so we have prepared this Privacy Policy to explain how we collect, use, and share it."
privacy policy · read from their site on 2026-11-12
