Tattoo Artist BooksAn app privacy policy and GDPR basics come down to one idea: collect only the user data you need, say clearly why, protect it, and give people control over it. In practice that means a privacy policy that matches what the app really does, sensible consent flows, and store privacy declarations that are accurate.
Important: this article is general information, not legal advice. Privacy law depends on where your users are and what your app does, so have a lawyer with data-protection experience review your policy and processes. Laws and store rules change; check the current versions from official sources (this was written in November 2026).
What counts as user data in an app?
Personal data is any information that identifies a person or can be linked to one. That goes well beyond what users type into a form. User data in apps often includes:
- Name, email address, phone number, date of birth
- Location, photos, contacts
- Device ID, advertising ID, IP address
- Usage events and crash logs sent to analytics tools
- Special categories such as health or biometric data, which carry stricter rules
Your first job is to list every piece of data the app and every third-party SDK (analytics, ads, payments, push) collects. That list becomes the basis for your policy and for the store forms.
What should an app privacy policy include?
Both app stores require a link to a publicly accessible privacy policy. A typical policy covers:
- Who is responsible for the data and how to contact them
- Which data is collected
- Why each type of data is processed
- Who receives it (hosting, analytics, payment providers) and whether it leaves your region
- How long it is kept
- User rights and how to exercise them
- Extra safeguards if the app is aimed at children
Don't copy a template without checking it against your actual data flows. A generic policy that doesn't match the app can be worse than none.
Consent, legal basis and children
Under the GDPR, consent is one of several legal bases for processing data, not the only one. Consent matters most for optional things like marketing messages, tracking across apps, or sensitive data. When you rely on it, it should be specific, informed and easy to withdraw, and the service shouldn't be held hostage to it unless the data is truly needed. Apps aimed at children raise extra questions, including the age at which a child can consent, which varies by country. Ask a lawyer how this applies to your case.
Apple privacy labels and Google Play data safety
Both stores ask you to declare your data practices before release: Apple through the App Privacy section in App Store Connect, Google through the Data safety form. These declarations must match what the app does. Forgetting what a third-party SDK collects is a common mistake and can cause review problems.
| Topic | App Store | Google Play |
|---|---|---|
| Data declaration | App privacy labels | Data safety section |
| Privacy policy link | Required | Required |
| Apps with account creation | Must offer in-app account deletion | Must provide a way to delete account and data |
| Third-party SDKs | What they collect counts as yours | What they collect counts as yours |
For a fuller list of review pitfalls, see app store rejection reasons.
Practical safeguards while designing the app
- Collect less: if you don't need a birth date, don't ask for it.
- Ask for permissions in context: request location when the feature is used, not on first launch.
- Build account deletion and data export early: adding them later costs more.
- Secure the data: encrypted connections (HTTPS), proper authorization, regular backups.
- Know where your servers are: hosting location affects your policy and transfer rules. For Tattoo Artist Books we keep data on EU servers for this reason.
- Get processors under contract: analytics, cloud and email providers should have written data-processing terms.
A pre-launch privacy checklist
Before submitting the app to a store, run through this list:
- Is there a table of everything the app and all SDKs collect?
- Is the privacy policy on a public link and reachable from inside the app?
- Do users get the required information before data is collected?
- Are optional permissions (location, notifications, camera) requested when the feature is used?
- Is there a way to handle account deletion and data requests, and who receives them?
- Do the store declarations match the real data flow exactly?
- Are data-processing terms with third-party providers in writing?
- Is it clear who does what if a data breach is suspected?
When you finish, you also hold the file to take to your lawyer: a data table, a draft policy and a flow overview. That makes their work faster and grounds it in the real app. Building privacy in from the start is far easier than bolting it on after launch, since later changes usually mean a new release and a new store review.
Frequently asked questions
Does a small app need a privacy policy?
Yes. If it collects personal data and goes into a store, a policy link is required. Even if it collects nothing, a short statement saying so is good practice.
Can I use a privacy policy generator?
As a starting draft, maybe. It only works if it reflects your real data flows, and a lawyer should check the final text.
Does GDPR apply if my company isn't in the EU?
It can apply when you offer your app to people in the EU or monitor their behavior. Confirm your situation with a lawyer.
What should I do about analytics tools?
Declare what they collect in the policy and store forms, and where possible pick settings that avoid personal data.
At OdenaVerse we build apps on a "less data, clear permission" principle, and we're happy to work alongside your lawyer on the legal texts. To go deeper, read our app development contract checklist or email us about your project.