Harper James advises businesses on the legal and operational requirements that apply when an iOS app collects, uses or shares personal data. Compliance involves both applicable data protection law, including the UK GDPR and Privacy and Electronic Communications Regulations (PECR), and Apple’s App Store requirements.
Create an inventory of every data type processed by the app, including account details, device identifiers, location, contacts, usage analytics, payment information and diagnostic data. Record the purpose, lawful basis, retention period, recipients and any international transfers for each category. Review third-party SDKs, advertising tools and analytics services because their collection practices form part of the app’s overall privacy assessment.
Data minimisation should shape the product design. Request only the iOS permissions necessary for a stated function, explain the purpose before requesting access, and provide settings that allow users to withdraw permissions where appropriate. An app using tracking for advertising or measurement must comply with Apple’s App Tracking Transparency framework and obtain permission before accessing the device advertising identifier or tracking users across apps and websites.
The app should provide an accessible privacy notice explaining what data is collected, why it is used, who receives it, how long it is retained and how users can exercise their rights. The notice must match the app’s actual behaviour and Apple’s App Store privacy disclosures. Where the app offers accounts, assess whether users can delete their account and associated data, subject to lawful retention requirements.
Processes are also needed for access, correction, deletion, restriction and objection requests. Businesses should maintain records of consent, permission choices and privacy requests, and should use clear consent wording rather than bundling optional analytics or marketing consent into essential terms.
Before release, test the app with privacy controls enabled and disabled, inspect network traffic, review SDK documentation and confirm that data is transmitted securely. Complete a data protection impact assessment where the processing presents a high risk, such as extensive tracking, profiling, sensitive information or precise location data. Put written arrangements in place with processors and assess international data transfers.
Privacy compliance is an ongoing product responsibility. Reassess the app after adding features, changing SDKs, introducing advertising, altering retention periods or changing suppliers. Keep the App Store privacy label, privacy notice, consent records and internal data map aligned with the current version of the app.