Effective Date: January 4, 2026 | Last Updated: August 22, 2026
Your Privacy Matters. This Privacy Policy describes how eResonance (referred to as "we," "us," or "the Company") collects, uses, stores, and protects your information when you use the SkulptAI application. We prioritize your data privacy, especially concerning sensitive personal and biometric information.
Identity (Stripped) Sensitive
We collect your name, email, and user ID for account management. This data is stripped before any AI processing and is never sent to third-party AI services.
Precise Location (Stripped) Sensitive
We use your precise GPS coordinates only internally to fetch hyper-accurate environmental data. This data is immediately stripped and never shared with the AI.
User Profile
Age, sex, skin type, medical history, and goals.
Environmental Data
General location (city, country), UV Index, and Air Quality Index (AQI).
Skin Analysis Data
Metrics like IGA, CEA, Hydration scores, and skincare history.
Declared Aesthetic Treatment History Sensitive
If you choose to answer, we store whether you have had dermal filler, which facial zones were treated, and approximately when. This is a cosmetic-procedure record you enter yourself — nothing is inferred from your scans. It is held in your own account area (users/{your ID}/fillerHistory) and is used to adjust how volume results are presented: see the Volume Analysis Disclaimer. You can change or clear it at any time, and it is removed when you delete your account. It may be shared with a clinic you grant access to — see Data Usage below.
Facial Images Sensitive
Images captured via the skin analysis function are used to calculate proprietary skin metrics. Images are temporarily processed and are never used for facial recognition, identification, or biometric profiling.
When you use our skin analysis features, we process facial images as follows:
What We Capture
Quick Scan: A single photo using the front camera (with optional TrueDepth depth) or rear camera ("Scan a Friend" mode, 2D only — no LiDAR). 3D Scan: Short video segments using the front-facing TrueDepth camera for facial geometry analysis.
On-Device Processing
Facial landmark detection is performed locally on your device using Apple Vision and ARKit frameworks. The depth map, the 3D facial mesh and the face texture never leave your iPhone.
AI Analysis — what is actually sent
A Quick Scan sends the photo to Google Gemini AI, and — when TrueDepth is available — also sends, as text in the prompt, depth-derived line measurements for six facial zones in millimetres together with your face-to-camera distance. A 3D Scan sends still frames extracted from the capture. We state this explicitly because "the 3D scan stays on your iPhone" is true of the depth map and the mesh, but would leave the wrong impression on its own: numbers derived from that depth data do travel with the request. Nothing else derived from your face is transmitted.
What We Don't Do
We never use face data for facial recognition, identification, authentication, or biometric profiling. We never sell face data to third parties.
Retention Period
Face images are NOT stored on our servers. Google's maximum retention is 48 hours for processing, after which images are automatically purged.
Your Control
You can delete all derived analysis data at any time through Settings → Delete My Data.
Our application employs a mandatory PII Stripping mechanism before any data is ever sent to the external AI model (Google Gemini). This ensures your clinical data remains separate from your identity.
We use Google Gemini AI to analyze skin images and provide personalized skincare recommendations.
| File uploads | 48 hours max |
| In-memory cache | 24 hours |
| Abuse monitoring | ~30 days |
Your data is used solely to provide and improve the App's core functionality:
Service Provision
To generate personalized skincare recommendations and daily insights.
Safety and Bias Mitigation
To ensure recommendations are safe for your specific Fitzpatrick skin type and medical history.
Service Improvement
Your de-identified, aggregated data may be used to improve the accuracy and fairness of our skin analysis algorithms.
Clinic Data Sharing (Optional)
You may optionally share your data with dermatologists or skincare clinics. Sharing requires your explicit consent and generates a time-limited QR code. Access is granted per category, not all-or-nothing: scan results, your Facial Aesthetic Score, your routine, and your declared aesthetic treatment history are each governed by their own permission. Your declared filler history is released only under the treatment-history permission, and only if you grant it. Clinics can access nothing you have not granted, and every access is logged for your records.
Data Retention
Your data is retained as follows: Scan data for 2 years, routines for 1 year, clinical scans for 5 years (medical records), anonymized research data for 10 years. Data is automatically archived or deleted after these periods unless you request earlier deletion.
AI Vendor Data
As we only transmit PII-safe context, our AI vendor receives only anonymized, contextual data for analysis.
Image Handling
Facial images are processed for metrics. Raw images may be temporarily stored to generate these metrics, but they are protected by encryption and are not used for any other purpose.
Under applicable data protection laws (including GDPR), you have the following rights:
Request a copy of the personal data we hold about you.
Request corrections to any inaccurate PII in your profile.
Request the deletion of your account and all associated data. This can be initiated within the App settings.
Request that your anonymized data not be used for future algorithm improvement.
This section covers the personalised recommendation request, which is separate from the scan analysis described above. Before any data is sent to the AI service, SkulptAI displays an explicit consent dialog clearly identifying:
Please understand what the volume figures are, and what they are not:
For any privacy-related questions or to exercise your data rights:
eResonance | Zurich, Switzerland