Listella
Privacy Policy
Last updated: June 2026
1. Introduction
Double Vibe Studio operates Listella. Listella is a shopping list app for personal and shared shopping lists.
This Privacy Policy explains what data is processed, why it is used, and what choices are available. For privacy questions, contact listella@doublevibestudio.com.
2. Data We Process
| Category | Examples | Why it is used |
|---|---|---|
| Account information | Email address, authentication identifiers, user ID. | Sign-in, account access, security, and cloud sync. |
| Shopping list content | List names, items, quantities, checked or completed state, and notes where available. | Saving, displaying, syncing, and managing shopping lists. |
| Shared list data | Memberships, invitations, invite status, and invited email addresses or identifiers where applicable. | Shared-list collaboration and invite handling. |
| Personal catalog and custom products | Items you save, create, edit, or use often. | Quick Add, personal product suggestions, and catalog reset controls. |
| Device and local app data | Local lists, settings, catalog data, and app preferences on your device. | Running Listella locally and remembering your settings. |
| Cloud sync data | Signed-in list and catalog data stored through Supabase. | Syncing across devices and supporting shared lists. |
| Voice input data | Speech processed through microphone and device or OS speech recognition. | Turning optional voice input into shopping list items. |
| Push notification data | Push tokens, notification settings, and related device identifiers if enabled. | Sending shared-list notifications. |
| Purchase and entitlement data | Subscription status, purchase identifiers, and entitlement state. | Providing and restoring Pro access through Google Play and RevenueCat. |
| Advertising data | Device identifiers, advertising identifiers, ad interaction data, and data needed to load, measure, and protect ads. | Showing ads to free users through Google Mobile Ads or AdMob. |
| Diagnostics and support data | Diagnostic logs, runtime logs, screenshots, or messages you send to support. | Debugging, support, security, and app improvement. |
3. Why We Use Data
- Authenticate accounts and keep account access working.
- Save, display, and sync shopping lists and personal catalog data.
- Enable shared-list collaboration, memberships, and invitations.
- Restore signed-in data across devices.
- Handle Pro subscription entitlement state.
- Show ads to free users.
- Provide support, debugging, fraud prevention, and security.
- Understand and improve app reliability and behavior.
4. Third-Party Services
Listella uses service providers to operate app features. These providers may process data according to their own terms and privacy policies.
- Supabase for authentication, database storage, and cloud sync.
- Google Mobile Ads / AdMob for ads in the free version.
- Google Play for billing and subscriptions.
- RevenueCat for subscription entitlement management.
- Device or OS speech recognition services for optional voice input.
- Push notification services if notifications are enabled for shared list activity.
5. User-Entered Sensitive Content
You choose what you add to your shopping lists. Shopping list content can include sensitive or personal information. Avoid adding information you do not want stored, synced, or shared with invited list members.
6. Sharing
- Shared lists may be visible to invited or accepted members, who may be able to view or edit shared content according to the app's current sharing behavior.
- Service providers may process data as needed to operate Listella.
- Data may be disclosed if required by law, to protect rights or security, or to investigate misuse.
7. Retention
- Local data stays on your device until you delete or reset it, uninstall the app, or clear app data.
- Cloud data may be kept while your account or cloud features are active, or until deletion is available or requested where applicable.
- Diagnostic and support logs may be retained only as needed for support, security, debugging, and reliability.
- Billing and entitlement records may be retained by Google Play and RevenueCat according to their own policies.
- Backups, security records, dispute records, or legal obligations may delay deletion where permitted.
8. User Choices and Controls
- Reset local app data in the app where available.
- Reset the personal catalog in the app where available.
- Delete cloud data where the current app supports it.
- Request account or data deletion by emailing listella@doublevibestudio.com.
- Manage or cancel subscriptions through Google Play.
- Manage ad privacy choices through device settings where available.
- Manage notification permissions through your OS settings.
9. Account and Data Deletion
Current app options can reset local app data, reset the personal catalog, and delete cloud data where available. Full automated Supabase Auth account deletion is not implemented in the app yet.
See the Delete Account and Data page for request instructions.
10. Security
We use service providers and technical measures designed to protect data. No method of transmission or storage is 100% secure, so we cannot guarantee absolute security.
11. Children
Listella is not intended for children under 13. If a parent or guardian believes a child provided personal data through Listella, contact us at listella@doublevibestudio.com.
12. International Processing
Data may be processed in countries where Double Vibe Studio and its service providers operate. Those countries may have different data protection laws than your country.
13. Changes
We may update this Privacy Policy as Listella changes. The updated policy will show a new effective or last updated date.
14. Contact
For privacy questions, contact listella@doublevibestudio.com.