Overview
Duolingo is a language learning application that users can access without paying subscription fees. Duolingo offers a consumer and a "for schools" version, and both applications are governed by the same privacy policy. Duolingo's terms say they allow users to engage in social interactions through discussions with other individuals where they can send messages, but not for children under the age of 13. Duolingo's terms say they collect personally identifiable information and automatically collected usage information from users when they register an account.
Duolingo's terms do not say whether they sell user's data to third parties. However, Duolingo's terms do say they share users' data with third party advertising networks, marketing analytics service providers and website analysis companies. These third-party advertising services collect may use personal data to track users and display targeted advertisements on other apps and services across the internet. Duolingo's terms also say they have implemented administrative and technical safeguards it believes are sufficient to protect the confidentiality, integrity and availability of a user's Testing ID, Photo, access credentials, and Duolingo language test results. Lastly, Duolingo's terms say users can access, modify, and delete their data at any time and that some features of the application are designed to be used by children under the age of 13.
Duolingo can be accessed through its website, and is available for download at the iOS App Store, and the Google Play Store. The Privacy Policy and Terms of Use accessed for this evaluation can be found on Duolingo’s website. Additionally, other policies used for this evaluation include: Community Guidelines. This evaluation only considers policies that have been made publicly available prior to an individual using the application or service.
Safety
Duolingo's community guidelines indicate that Duolingo ensures a safe environment for user interaction by removing inappropriate and offensive content, but some personal information may be publicly visible. However, Duolingo warns users not to overshare personal information when interacting with other users. The terms say Duolingo puts in place safety protections for children such as: a child’s profile is made private and hidden from other users’ searches and other users are unable to follow a child. In addition, the ability to follow other users or search for other users is disabled for children and the ability to send an invitation email is disabled and social logins with Facebook, Google or Apple are disabled.
Privacy
The terms of Duolingo say they collect personally identifiable information and automatically collected usage information from users when they register an account. If a user registers for a Duolingo language test, each time they take a test they must also provide a picture or scan of a current, valid driver’s license, passport or other government issued ID and a picture of their face. When a user takes an examination of a Duolingo language test they must provide access to their computer’s webcam and microphone. Duolingo's terms say they will use them to record a user during the entire examination period and will store the recording to validate that a user took the examination without improper assistance.
Duolingo's terms do not say whether they sell user's data to third parties. However, Duolingo's terms do say they share users' data with third party advertising networks, marketing analytics service providers and website analysis companies. These third-party advertising services may collect and use personal data to track users and display targeted advertisements on other apps and services across the internet. Lastly, the terms say information associated with a Duolingo language test, including examination results and a user's Testing Video, may be collectively deleted from a user's Duolingo account, but anonymized examination data, including a user's examination results and Testing Video, may be kept indefinitely by Duolingo to improve the examination and for research and analysis.
Security
Duolingo's terms say they have implemented administrative and technical safeguards it believes are sufficient to protect the confidentiality, integrity and availability of a user's Testing ID, Photo, access credentials, and Duolingo language test results. However, Duolingo's terms do not provide any information about whether personal information is encrypted while in transit or at rest. Furthermore, there is no indication as to whether users will be notified in the event of a data breach.
Compliance
Duolingo is a service meant for all ages, and the service is clear that it does design some features specifically for children. However, the service would likely appeal to children under 13 years of age, which take into account several factors that include the educational related subject matter, visual content, the game-based features of the application, age of models or cartoons, and activities provided. The privacy policy indicates that users can access, delete, or modify their data by visiting their account settings or notifying Duolingo through email. Duolingo's terms also say they obtain parental consent before collecting personal information from children, both in the United States, the European Union, and other countries. Lastly, Duolingo says that it collects a parent's email addresses to contact parents and obtain consent for their children's account.
Overall Score
Every privacy rating includes an overall score. A higher score (up to 100%) means the product provides more transparent privacy policies with better practices to protect user data. The score is best used is as an indicator of how much additional work a person will need to do to make an informed decision about a product.
| Basic Score | Full Score | |
|---|---|---|
| Comprehensive Assessment | 58 | 53 |
Concerns
The privacy evaluation process summarizes the policies of an application or service into concern categories based on a subset of evaluation questions that can be used to quickly identify particular practices of a vendor’s policies. These concerns are composed of evaluation questions that can be used to calculate scores relative to that concern.
| Concern | Basic Score | Full Score |
|---|---|---|
| Data Collection: Protecting personal information | 50 | 45 |
| Data Sharing: Protecting data from third parties | 50 | 70 |
| Data Security: Protecting against unauthorized access | 0 | 15 |
| Data Rights: Controlling rights to data | 88 | 85 |
| Data Sold: Preventing sale of data | 0 | 25 |
| Data Safety: Promoting responsible use | 67 | 55 |
| Ads & Tracking: Prohibiting the exploitation of users' decision making process | 50 | 60 |
| Parental Consent: Protecting children’s personal information | 100 | 55 |
| School Purpose: Following student data privacy laws | 100 | 38 |
| Individual Control: Controlling data use | NA | 40 |
Statutes
Each statute or regulation is associated with one or more evaluation questions. As such, we can calculate scores for each statute or regulation using only those questions associated with the statute or regulation. Each specific statute or regulation's score serves as an indirect proxy indicating the likelihood of the application or service satisfying all of its compliance obligations.
| Statute | Basic Score | Full Score |
|---|---|---|
| California Online Privacy Protection Act (CalOPPA) | 81 | 69 |
| Children's Online Privacy Protection Act (COPPA) | 57 | 54 |
| Family Educational Rights and Privacy Act (FERPA) | 63 | 52 |
| Student Online Personal Information Protection Act (SOPIPA) | 50 | 51 |
| General Data Protection Regulation (GDPR) | 60 | 50 |
Privacy Policy Details
1: Transparency
1.1: Policy Version
- Privacy policies do indicate a version or effective date.
- Privacy policies do not indicate a change log or past policy version is available.
1.2: Policy Notice
- Users are notified if there are any material changes to the policies.
- Privacy policies indicate the method used to notify a user when policies are updated.
1.3: Policy Changes
- Users are notified prior to any material changes to the policies.
- Changes to the policies are effective immediately and continued use of the product indicates consent.
1.4: Policy Coverage
- Privacy policies indicate the products that are covered by the policies.
1.5: Privacy Contact
- Users can contact the company about any privacy policy questions, complaints, or material changes to the policies.
1.6: Policy Principles
- Privacy policies do indicate privacy principles, layered notices, or a table of contents.
1.7: Policy Language
- Privacy policies are available in multiple languages.
1.8: Intended Use
- Intended for children under 13.
- Unclear whether intended for teens.
- Intended for adults over 18.
- Intended for parents or guardians.
- Intended for students.
- Unclear whether intended for teachers.
2: Focused Collection
2.1: Data Collection
- Personally identifiable information (PII) is collected.
- The categories of collected personally identifiable information are indicated.
- Unclear whether this product collects geolocation data.
- Biometric or health data are collected.
- Interactions, behaviors, or usage analytics data are collected.
- Unclear whether this product collects sensitive data.
- Data is automatically collected.
2.2: Data Source
- Unclear whether personal information or education records are collected from preK-12 students.
- Personal information from children under 13 years of age is collected.
2.3: Data Excluded
- Specific types of personal information are excluded from collection.
- Unclear whether specific types of collected information are excluded from the privacy policy.
2.4: Data Limitation
- Unclear whether the collection or use of data is limited to product requirements.
3: Data Sharing
3.1: Data Shared With Third Parties
- Collected information is shared with third parties.
- The categories of information shared with third parties are indicated.
3.2: Data Use by Third Parties
- The purpose for sharing a user's personal information with third parties is indicated.
- Data are shared for analytics.
- Data are shared for research and/or product improvement.
- Personal information is shared for third-party marketing.
3.3: Data Not Shared With Third Parties
- Unclear whether there are specific categories of information that are not shared with third parties.
3.4: Data Sold to Third Parties
- Unclear whether personal information is sold or rented to third parties.
3.5: Third-Party Data Acquisition
- Unclear whether personal information about users is obtained from third parties.
3.6: Third-Party Links
- Links to third-party external websites are not age-appropriate.
3.7: Third-Party Data Access
- Third parties are authorized to access a user's information.
3.8: Third-Party Data Collection
- Personal information of users is collected by a third party.
3.9: Third-Party Data Misuse
- Unclear whether personal information can be deleted from a third party.
3.10: Third-Party Service Providers
- Third-party services are used to support the product.
- The roles of third-party service providers are indicated.
3.11: Third-Party Affiliates
- Unclear whether the categories of third parties that receive data are indicated.
3.12: Third-Party Policies
- Links to privacy policies of third-party companies are not available.
3.13: Third-Party Data Combination
- Unclear whether company may combine data with additional data from third-party sources.
- Unclear whether data shared with third parties can be combined with other data.
3.14: Third-Party Authentication
- Third-party login is supported.
- Personal information from third-party login providers is collected.
- Unclear whether personal Information is shared with third-party login providers.
3.15: De-identified or Anonymized Data
- User information that is shared is shared in an anonymous or de-identified format.
- Unclear whether the company describes their de-identification process of user information.
3.16: Third-Party Contractual Obligations
- Unclear whether contractual limits are placed on third-party data use.
- Unclear whether contractual limits prohibit third parties from reidentifying or de-identified information.
4: Respect for Context
4.1: Data Use
- Use of information is limited to the purpose for which it was collected.
- The context or purpose for which data are collected is indicated.
4.2: Data Combination
- Unclear whether this product treats combined information as personally identifiable information (PII).
4.3: Data Notice
- Unclear whether notice is provided if the context in which data are collected changes.
4.4: Data Changes
- Unclear whether consent is obtained if the practices in which data are collected change.
4.5: Policy Enforcement
- Accounts may be terminated if users engage in any prohibited activities.
5: Individual Control
5.1: User Content
- Users can create or upload content.
5.2: User Consent
- Opt-in consent is requested from users at the time personal information is collected.
5.3: Remedy Process
- A grievance or remedy mechanism is available for users to file a complaint.
5.4: Data Settings
- Users can control the use of their information through privacy settings.
5.5: Data Disclosure
- Users can opt out from the disclosure or sale of their data to a third party.
- Unclear whether users can request to know what personal information has been shared with third parties.
- Unclear whether notice is provided in the event the company receives a government or legal request for a user's information.
5.6: Intellectual Property
- Users retain ownership of their data.
- A copyright license is claimed to data or content collected from a user.
- Unclear whether any copyright license to a user's data is limited in scope or duration.
6: Access and Accuracy
6.1: Data Access
- Processes to access or review user data are available.
- Methods are available to restrict who has access to data.
- Processes to review student data are available for the school, parents, or students.
6.2: Data Integrity
- Unclear whether the company attempts to maintain the accuracy of data they collect.
6.3: Data Correction
- Processes to modify data are available for authorized users.
- Processes for the school, parents, or students to modify inaccurate student information are available.
- Unclear whether the time period for the company to modify inaccurate data is indicated.
6.4: Data Retention
- A data-retention policy is available.
- Exceptions to the data retention policy exist.
6.5: Data Deletion
- Unclear whether this product deletes data when no longer necessary.
- A user's data are deleted upon account cancellation or termination.
- Processes to delete user data are available.
- Processes for authorized users to delete data are available.
- Unclear whether the time period for the company to delete data is indicated.
6.6: Data Portability
- Processes to download user data are available.
- Unclear whether a user can assign an authorized account manager or legacy contact.
7: Data Transfer
7.1: Data Handling
- Unclear whether user information can be transferred to a third party in the event of a merge, acquisition, or bankruptcy.
- Unclear whether notice is provided to users if the company assigns its rights or delegates its duties to another company.
- Unclear whether users are notified if their information is transferred to a third party.
7.2: Transfer Request
- Unclear whether user information can be deleted prior to its transfer to a third party.
7.3: Onward Contractual Obligations
- Unclear whether third-party transfers are contractually required to use the same privacy practices.
8: Security
8.1: User Identity
- A user's identity is verified with additional personal information.
8.2: User Account
- Account creation is required.
- Unclear whether managed accounts are available.
- Unclear whether multi-factor account protection is available.
8.3: Third-Party Security
- Unclear whether third-parties with access to information are required to provide the same security protections as the company.
8.4: Data Confidentiality
- Unclear whether this product uses reasonable security practices to protect data.
- Unclear whether this product limits employee or physical access to user information.
8.5: Data Transmission
- Unclear whether this product encrypts all data in transit.
8.6: Data Storage
- Unclear whether all data are stored in an encrypted format.
- The company is clear what jurisdiction a user's personal information is subject to.
8.7: Data Breach
- Unclear whether this product provides notice in the event of a data breach.
8.8: Data Oversight
- Unclear whether this product performs data-privacy and/or security-compliance audits.
9: Responsible Use
9.1: Social Interactions
- Users can interact with trusted users.
- Users can interact with untrusted users, including strangers and/or adults.
- Profile information must be shared for social interactions.
9.2: Data Visibility
- Personal information can be displayed publicly.
- Users can control how their data are displayed to others.
9.3: Monitor and Review
- User-created content is reviewed, screened, or monitored by the company.
- Unclear whether user-created content is filtered for personal information before being made publicly visible.
- Unclear whether social interactions between users are moderated.
- Unclear whether social interactions of users are logged.
9.4: Report Content
- Unclear whether users can filter or block inappropriate content.
- Users can report abuse or cyberbullying.
9.5: Internet Safety
- The company provides links to resources that support safe and appropriate social interactions.
10: Advertising
10.1: Vendor Communications
- A user can receive service- or administrative-related communications from the company.
10.2: Traditional Advertising
- Traditional or contextual advertisements are displayed.
10.3: Behavioral Advertising
- Personalised advertising is displayed.
10.4: Ad Tracking
- Data are collected by third-parties for their own purposes.
- User's information is used to track and target advertisements on other third-party websites or services.
- Data profiles are created and used for personalised advertisements.
10.5: Filtered Advertising
- Ads displayed to children are filtered for inappropriate content.
10.6: Marketing Communications
- The company can send marketing messages.
- The company does provide promotional sweepstakes, contests, or surveys.
10.7: Unsubscribe
- Users can opt out of contextual, or personalised advertising.
- Users can opt out or unsubscribe from marketing communications.
10.8: Do Not Track
- Company does not respond to "Do Not Track" or other opt-out mechanisms.
- The company does provide a method for users to opt-out from third-party tracking.
11: Compliance
11.1: Children Under 13
- Unclear whether company has actual knowledge that personal information from users under 13 years of age is collected.
- The company does provide a section, heading, or separate policy for children in their policies.
- Account creation is restricted or prohibited for users under 13 years of age.
11.2: Students in K–12
- Product is primarily used by, designed for, and marketed toward students in grades preK–12.
- Processes to enter education records into the product are described.
- Unclear whether additional rights or protections may be provided with an additional school contract.
- Unclear whether the company is designated as a school official.
11.3: Parental Consent
- Parental consent is required before personal information is collected or disclosed.
- Unclear whether this product limits parental consent with respect to third parties.
- Unclear whether this product allows parents to withdraw consent for the further collection of their child's information.
- Children's personal information is deleted if collected without parental consent.
- Unclear whether this product provides parental consent notice and method for submission.
- Unclear whether this product transfers parental consent obligations to the school or district.
11.4: Legal Requirements
- The legal jurisdiction that applies to the laws governing the policies is indicated.
- A user is required to waive the right to a jury trial, or settle any disputes by arbitration.
- A user is required to waive the right to join a class action lawsuit.
- A company will disclose personal information to law enforcement.
11.5: Certification
- Unclear whether the company has signed a privacy pledge or received a privacy certification.
11.6: International Laws
- A user's data are subject to International data transfer or jurisdiction laws.
- The company has indicated it is a Data Controller or Data Processor.