Privacy Policy

JOY by Mureli · Effective 25 October 2026

JOY by Mureli (“JOY”, “the app”) hands you one small, doable task at a time. This policy explains what data the app and this website collect, why, who else handles it, how long it is kept, and the rights you have. We keep it short on purpose: we collect only what JOY needs to work.

1. Who is responsible

The controller of your personal data is Andrii Murko, a private individual based in Poland, who develops and publishes JOY.

For anything about your data — questions, requests, deleting your account — write to hello@lab4-studio.com.

2. What we collect

Your account

How you use JOY

Kept only on your phone

Technical data

We do not use analytics or tracking tools in the app or on this website, and the website sets no cookies. JOY does not ask for your location, contacts, photos, camera or microphone.

3. Ads

JOY is free. When you reach a daily limit, the app may offer a short rewarded ad: you choose to watch it, and a fully watched ad gives you one more try for the day. Ads are shown by Google AdMob, which handles ad-related data as an independent controller under Google’s Privacy Policy.

We never sell your personal data, and we do not share your email, name or task history with advertisers.

4. Why we use your data (legal bases)

PurposeLegal basis (GDPR)
Your account, tasks, history, filters, limits and extra triesPerforming our agreement with you — the Terms of Use (Art. 6(1)(b))
Password-reset and other account emailsPerforming our agreement with you (Art. 6(1)(b))
Personalised ads and the advertising identifierYour consent (Art. 6(1)(a)), which you can withdraw at any time
Non-personalised ads, security, preventing abuse of limits and rewards, server logsOur legitimate interests in keeping JOY free, safe and working (Art. 6(1)(f))
Keeping records the law requiresLegal obligation (Art. 6(1)(c))

5. Who else handles your data

Some of these providers may process data outside the EEA (for example in the United States). Where they do, the transfer is protected by the European Commission’s Standard Contractual Clauses or the EU–U.S. Data Privacy Framework.

6. How long we keep it

7. Deleting your account

Open JOY and go to Settings → Profile → Delete account. This removes your account, history, likes, settings and reward records at once. If you cannot open the app, email hello@lab4-studio.com from the address of your account and we will delete it for you.

8. Your rights

Depending on where you live, you have the right to access your data, correct it, delete it, restrict or object to its use, receive it in a portable format, and withdraw consent at any time without affecting earlier processing. To use any of these rights, write to hello@lab4-studio.com; we answer within one month.

You can also complain to a data protection authority — in Poland the President of the Personal Data Protection Office (UODO), or the authority where you live or work.

9. Children

JOY is meant for people aged 13 and over. In the European Economic Area, if you are under 16 (or the lower age set by your country), you need a parent’s or guardian’s consent to use JOY. We do not knowingly collect data from children under 13; if we learn that we have, we delete it.

10. Security

Data travels encrypted (HTTPS). Access to your data in our database is limited to your own account by row-level security rules, and the actions that matter — like daily limits and extra tries — are enforced on the server, not in the app.

11. Changes to this policy

If we change this policy, we will update the date at the top and, for significant changes, tell you by email or in the app before they apply.

12. Contact

Andrii Murko · Poland · hello@lab4-studio.com