Duolingo · Duolingo Terms of Service · View original document ↗

Unilateral Terms Modification

Medium severity Medium confidence Explicitdocumentlanguage Common · 56 of 325 platforms
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Recent governance activity Duolingo recorded 3 documented changes in the last 30 days.
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Document Record

What it is

Duolingo can change these terms at any time. If you keep using the app after changes are made, you are treated as having agreed to the new terms, even if you did not read them.

This analysis describes what Duolingo's agreement states, permits, or reserves. It does not constitute a legal determination about enforceability. Regulatory applicability and practical outcomes may vary by jurisdiction, enforcement context, and individual circumstances. Read our methodology

ConductAtlas Analysis

Why it matters (compliance & governance perspective)

The provision allows Duolingo to alter the contractual terms governing user rights and obligations at any time, with continued use constituting acceptance, which means users may be bound by new terms without explicit affirmative consent.

Interpretive note: Enforceability of implied acceptance through continued use varies by jurisdiction, particularly for material changes to dispute resolution or data processing terms in EU and UK contexts.

Consumer impact (what this means for users)

Users who continue using Duolingo after a terms update are treated as accepting the new terms; the only way to reject updated terms is to stop using the service entirely.

How other platforms handle this

ClickUp Medium

We reserve the right, at our sole discretion, to modify or replace these Terms at any time. If a revision is material we will try to provide at least 30 days notice prior to any new terms taking effect. What constitutes a material change will be determined at our sole discretion.

Starbucks Medium

Starbucks reserves the right to modify these Terms at any time. We will post the most current version of these Terms on the Service. If we make material changes, we may notify you by email or by posting a notice on the Service prior to the effective date of the changes. Your continued use of the Ser...

AWS Medium

We may change, discontinue, or deprecate any of the Services (including the Services as a whole) or change or remove features or functionality of the Services from time to time. We will notify you of any material changes to or discontinuation of any Service. We may modify this Agreement (including a...

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▸ View Original Clause Language DOCUMENT RECORD
"
We reserve the right to modify these Terms at any time. If we make changes to these Terms, we will provide notice of such changes, such as by sending an email notification, providing notice through the Service or updating the 'Last Updated' date at the beginning of these Terms. Your continued use of the Service will confirm your acceptance of the revised Terms. If you do not agree to the modified Terms, you must stop using our Services.

— Excerpt from Duolingo's Duolingo Terms of Service

ConductAtlas Analysis

Institutional analysis (Compliance & governance intelligence)

(1) REGULATORY LANDSCAPE: Unilateral modification clauses in consumer contracts may interact with the EU Unfair Contract Terms Directive and the UK Consumer Rights Act 2015, which may require that changes to material terms require affirmative consent rather than implied acceptance through continued use. The FTC Act's prohibition on unfair or deceptive practices is relevant where material changes are not adequately disclosed. GDPR may require affirmative re-consent for certain types of data processing changes for EEA users. (2) GOVERNANCE EXPOSURE: Medium. The notification mechanism is described broadly as email, in-app notice, or a date change on the document, with no minimum notice period specified. The absence of a mandatory advance notice period before changes take effect is operationally notable for provisions that materially affect user rights. (3) JURISDICTION FLAGS: EU and UK users may have stronger protections under unfair contract terms legislation requiring meaningful notice and consent for material changes. California and other US states with active consumer protection enforcement may scrutinize notice-by-date-change as insufficient for material modifications. (4) CONTRACT AND VENDOR IMPLICATIONS: Institutional purchasers relying on Duolingo for training or education programs should assess the risk that terms may change materially without advance notice or a minimum notice period. Enterprise procurement should seek contractual protections with defined notice periods. (5) COMPLIANCE CONSIDERATIONS: Legal teams should monitor Duolingo's terms for material changes, establish an alert process for 'Last Updated' date changes, and evaluate whether the implied consent mechanism is enforceable in relevant jurisdictions for specific categories of changes, particularly those affecting data processing or dispute resolution.

Full compliance analysis

Regulatory citations, enforcement risk, and due diligence action items.

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Applicable agencies

  • FTC
    The FTC has jurisdiction over unfair or deceptive practices, relevant to implied consent mechanisms for material terms changes in consumer contracts.
    File a complaint →

Provision details

Document information
Document
Duolingo Terms of Service
Entity
Duolingo
Document last updated
May 5, 2026
Tracking information
First tracked
April 18, 2026
Last verified
May 12, 2026
Record ID
CA-P-011173
Document ID
CA-D-00085
Evidence Provenance
Source URL
Wayback Machine
Content hash (SHA-256)
d19834a28338bd25c025cefc24f18f933e0381108cf4fd3784c6e64a4a6f59fb
Analysis generated
April 18, 2026 09:26 UTC
Methodology
Evidence
✓ Snapshot stored   ✓ Hash verified
Citation Record
Entity: Duolingo
Document: Duolingo Terms of Service
Record ID: CA-P-011173
Captured: 2026-04-18 09:26:58 UTC
SHA-256: d19834a28338bd25…
URL: https://conductatlas.com/platform/duolingo/duolingo-terms-of-service/unilateral-terms-modification/
Accessed: May 13, 2026
Permanent archival reference. Stable identifier suitable for legal filings, compliance documentation, and research citation.
Classification
Severity
Medium
Categories

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Frequently Asked Questions

What does Duolingo's Unilateral Terms Modification clause do?

The provision allows Duolingo to alter the contractual terms governing user rights and obligations at any time, with continued use constituting acceptance, which means users may be bound by new terms without explicit affirmative consent.

How does this clause affect you?

Users who continue using Duolingo after a terms update are treated as accepting the new terms; the only way to reject updated terms is to stop using the service entirely.

How many platforms have this type of clause?

ConductAtlas has identified this type of provision across 56 platforms. See the full comparison.

Is ConductAtlas affiliated with Duolingo?

No. ConductAtlas is an independent monitoring service. We are not affiliated with, endorsed by, or sponsored by Duolingo.