A privacy notice is a short disclosure shown at the point of data collection. A privacy policy is a complete legal document covering all data practices. They serve different purposes and are not interchangeable.
Privacy notices appear in context. When a form asks for your email, the notice below it says what happens to that email. When an app requests location access, the popup explains why. Notices are brief (1-3 sentences), specific to one action, and shown before or during data collection. GDPR Article 13 requires them whenever you collect personal data directly from users.
Privacy policies live on a dedicated page (usually /privacy). They cover everything: what data is collected, how it is processed, who it is shared with, retention periods, user rights, and contact information for the data protection officer. Policies run 2,000-5,000 words for a typical web app. Every jurisdiction with privacy laws requires one.
| Aspect | Privacy Notice | Privacy Policy |
|---|---|---|
| Length | 1-3 sentences | 2,000-5,000 words |
| Location | At point of collection | Dedicated page |
| Scope | Single data practice | All data practices |
| Timing | Shown before/during collection | Always available |
| Legal basis | GDPR Art. 13/14, CCPA | GDPR, CCPA, PIPEDA, etc. |
| Audience | End users in context | Legal review, regulators |
For developers building products: implement both. Show contextual privacy notices in your UI where data is collected (form fields, permission dialogs, API consent screens). Link to the full privacy policy from your footer and settings page. Keep notices updated when your data practices change.
A common mistake is treating the privacy policy as a notice. Linking to a 4,000-word legal document when someone submits a contact form does not meet the “clear and concise” requirement under GDPR. Write short notices for each collection point and keep the full policy as the reference document.
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