Privacy Policy
Last updated: January 2026
Summary: Negink uses anonymous device identification. We don't store your prompts or generated images on our servers. Only anonymous usage counts are tracked for credit management.
Our Privacy Commitment
Negink is designed with privacy in mind. We collect only the minimum data necessary to provide the service and manage your credits fairly. Your tattoo ideas remain your own.
Data We Collect
| Data Type | Purpose | Storage |
|---|---|---|
| Anonymous Device ID | Credit tracking | iOS Keychain (local) + Server |
| Usage Count | Credit management | Server |
| Subscription Status | Feature access | RevenueCat (third-party) |
Data We Do NOT Collect
- Prompts: Your tattoo ideas are processed for generation only and never stored
- Generated Images: Designs are created server-side but not saved after delivery
- Personal Information: No names, emails, or identifiable data
- Location Data: We don't track where you use the app
- Usage Patterns: No analytics on how you browse or use features
How AI Generation Works
When you generate a tattoo design:
- Your prompt is sent to our secure servers
- The AI generates your design
- The image is sent back to your device
- The prompt and image are immediately deleted from our servers
We never store, review, or use your prompts or generated designs for any purpose other than delivering them to you.
Body Preview Feature
When using the "Preview on Body" feature, your selected gender and body area preferences are sent to generate the preview image. This data is used only for generation and is not stored on our servers.
Local Device Storage
Designs you choose to save are stored locally on your device only. This includes:
- Saved tattoo designs (in app storage)
- Design history
- Your preferences
This data never leaves your device and is deleted when you uninstall the app.
Anonymous Identification
Instead of requiring an account, Negink uses an anonymous device ID stored securely in your iOS Keychain. This ID:
- Is randomly generated and contains no personal information
- Persists across app reinstalls (to prevent credit abuse)
- Cannot be used to identify you personally
- Is only used to track your credit balance
Third-Party Services
RevenueCat - We use RevenueCat for subscription management. RevenueCat processes payment through Apple's App Store and does not have access to your payment details. See RevenueCat's Privacy Policy.
AI Generation API - Your prompts are processed by our AI service provider solely for generating your designs. Prompts are not stored or used for training.
Data Retention
- Device ID & Usage Counts: Retained while you use the service
- Prompts: Deleted immediately after generation
- Generated Images: Deleted immediately after delivery
- Subscription Data: Managed by RevenueCat per their retention policy
Your Rights
Since we use anonymous identification and don't store personal data, there's nothing to delete or export. If you uninstall the app and it gets reinstalled, your device ID in the Keychain may persist, which is by design to prevent credit abuse.
Children's Privacy
Negink is not intended for children under 13. We do not knowingly collect data from children. The app generates tattoo designs which may not be appropriate for all ages.
Contact Us
If you have any questions about this privacy policy, please contact us at click to reveal email.