Privacy Policy
Last updated 17 October 2026
Hang Social is developed by Nilsen Lab. It lets people share availability, manage friends and groups, and create events. We collect the data needed to provide those features, protect accounts, deliver notifications, and respond to support or safety reports.
We do not sell personal data, do not show ads, and do not use data for tracking across apps or websites.
Data we collect
Account and contact information. Your name, email address, account identifier, username, and optional phone number or external contact handles when you add them to your profile. Firebase Authentication processes your password for sign-in; we do not store it in your public profile.
Friends, groups, and events. Friend connections, friend requests, friend groups, availability status, status text, event titles, descriptions, venue text, RSVPs, and event comments.
Activity and friend search. We record account activity times when you sign in or update your profile or status. Username searches are sent to Firebase to find matching public profiles. Hang does not show or maintain a search-history list.
Photos. Your profile photo, if you choose to upload one.
Notifications and preferences. Push tokens, notification preferences, status visibility settings, and blocked-user controls, so we can deliver notifications and respect your choices.
Support and safety reports. Reports or support messages you submit, so we can review and respond.
App updates and startup diagnostics. Hang checks for app updates through Expo when it starts. Each check sends app, operating system, and release details together with a random installation token used only for updates. If the app failed to start on a previous launch, the next check may also include a brief description of that error so the app can recover. Hang does not add your account details to these requests, and they are not used for advertising or tracking.
How we use data
- To create and secure your account
- To show friends, groups, availability, and events inside Hang
- To deliver push notifications you enable
- To deliver app updates and recover from startup errors
- To provide support, handle bug reports, and review safety reports
- To enforce app rules and prevent abuse
Data sharing
Hang uses Google Firebase to authenticate users, store app data, store uploaded profile photos, and run backend functions, and Expo services to deliver push notifications and app updates, including the update checks and startup diagnostics described above. These providers process data on our behalf.
We do not share personal data with advertising networks or data brokers.
Your choices
- Update your profile information from the app
- Change notification preferences from the app
- Block users from the app
- Delete your account from the Danger Zone section of the Profile tab, or request deletion by email
- Email lukas@nilsenlab.com for account or data help
Deletion and safety retention
Deleting your account removes your profile, social connections, notification settings, groups and events you created, and participation and comments on other events. We keep a minimal record with the deleted account ID and deletion dates to prevent old account credentials being reused. Restricted safety reports involving the account are kept for a 90-day retention period, then removed by a daily cleanup job. They may be held longer for an active investigation or a legal obligation.
Children
Hang Social is intended for adults aged 18 and older. If you believe a child has provided personal data without appropriate permission, contact lukas@nilsenlab.com.
Changes
If this policy changes, we’ll update the date at the top of this page.
Contact
For privacy questions or requests, email lukas@nilsenlab.com.