Last updated: September 28, 2026
The data controller for the Stretko application (package com.joinly.app, formerly "Joinly") is Marcel Šoták (hereinafter "we"). This policy explains what personal data we process, why, where it is stored, and what rights you have.
Contact: marcel.sotak123@gmail.com
Stretko is intended only for people aged 16 and older. Before registering (by email or with Google) you must confirm that you are at least 16 years old. We do not knowingly collect data from anyone under 16. If we learn that an account belongs to a younger person, we delete it. If you know of such an account, please contact us.
Other signed-in users can see your name, profile photo, bio, the events you created and your event attendance. Event chat messages are visible only to that event's attendees and creator. Direct messages are visible only to the two participants. Your email address is not shown to other users.
| Data | Service (processor) | Location |
|---|---|---|
| Profiles, events, messages, attendance, friends, invitations, reports | Google Firebase – Cloud Firestore | European Union (multi-region eur3: Belgium and the Netherlands) |
| Server-side processing (moderation, invitations, account deletion, private events) | Google Cloud Functions | EU (Belgium, europe-west1); some automated background tasks (sending push notifications, cleaning up old events) run in the USA |
| Login data (email, password in encrypted form) | Firebase Authentication | Google global infrastructure (may include the USA) |
| Event images and profile photos | Cloudinary | Cloudinary servers (may be outside the EU, mainly in the USA) |
| Push notifications | Firebase Cloud Messaging | Google global infrastructure |
| Usage statistics and crash reports | Google Analytics for Firebase, Firebase Crashlytics | Google global infrastructure (may include the USA) |
| Ads | Google AdMob | Google global infrastructure (may include the USA) |
| Map, place search | Google Maps Platform, Google Places | Google global infrastructure |
| Copy of events and settings (for faster loading and offline mode) | Local storage on your phone | Only on your device; removed when you uninstall the app |
For transfers outside the EU (mainly to the USA) we rely on the GDPR safeguards provided by these processors – the EU-U.S. Data Privacy Framework and the European Commission's Standard Contractual Clauses. All communication between the app and the servers is encrypted (HTTPS).
We do not sell your data or share it with third parties for marketing purposes. Data is processed only by the processors listed above and additionally:
You can delete your account at any time directly in the app: Settings → Delete account. This immediately deletes your profile, the events you created, your messages (event chats and direct messages), your event attendance, friends, invitations, reports you submitted and the login account itself.
Images uploaded to Cloudinary are not yet deleted automatically – we delete them within 30 days on request by email. If you no longer have the app, you can also request deletion on the web: Delete Account & Data.
You have the right to:
To exercise your rights, email marcel.sotak123@gmail.com. We reply within 30 days.
The app requests location access only to show nearby events and calculate distance. Your current location is not permanently stored on our servers. Only the locations of events you create yourself are stored.
Access to data is limited by database security rules (each user can modify only their own data), transmission is encrypted and passwords are managed by Firebase Authentication. However, no internet service can guarantee complete security.
We will inform you of material changes within the app. The current version is always available on this page.
Questions and complaints: marcel.sotak123@gmail.com