Last updated March 29, 2026
The short version. Shared task content is encrypted on your device before it is stored in sync systems. Push notifications use generic placeholders. No tracking. No ads. No data sales. Private tasks are never shared with your partner or stored on our servers.
Tasks are stored locally using Core Data. iCloud backup syncs to your personal iCloud account. Your data, your iCloud, your control.
We use Supabase for sync. It stores:
Private tasks stay private. Never synced to your partner. Never broadcast. Never stored on our servers. If iCloud backup is enabled, private tasks are included in your encrypted iCloud backup.
Task content is encrypted. Titles and notes are encrypted on your device with AES-256-GCM before they go anywhere. Only you and the other person in your group hold the key.
The minimum required to make Halves work:
We do not store plaintext shared task titles or notes in sync storage. Private tasks are never sent to our servers or your partner. If iCloud backup is on, all local data — including private tasks — is included in your encrypted iCloud backup. We do store the account and service metadata needed to operate Halves, including display names, profile photo URLs, device tokens, and diagnostics.
Task data syncs via Supabase Realtime. Titles and notes are encrypted on-device before transmission. All connections use TLS.
Presence tracks only whether the other person is connected. No location, no IP, no usage data.
Push notifications use generic placeholders — actual titles are only visible in-app after decryption.
No analytics SDKs. No ad networks. No tracking pixels. No cookies.
We don't sell your data. We don't share it. Task data and activity logs are shared only between members of a paired group.
Deleting the app removes on-device data from that device. iCloud backups follow Apple's retention policies until you delete the backup.
Depending on your location, you may have the right to access, correct, delete, or port your data.
Local data: delete the app. Halves account data: use in-app Delete Account or email hello@halves.app.
Halves is not intended for users under 13.