Mirror Diary ("we," "us," or "our") is a mobile application that uses artificial intelligence to analyze daily selfies and provide users with a personal self-care and glow-up tracking experience. The app is operated as an independent product.
This Privacy Policy explains how we collect, use, disclose, and protect your personal information when you use the Mirror Diary mobile application (iOS) and our website at mirrordiary.app.
By using Mirror Diary, you agree to the practices described in this policy. If you do not agree, please discontinue use of the app.
identifierForVendor) used for anonymous session continuity.| Data Category | Collected | Purpose |
|---|---|---|
| Selfie photos | Yes (you capture) | AI analysis, your private history |
| AI score & analysis | Yes (generated) | Display to you, track your trend |
| Onboarding preferences | Yes (you provide) | Personalize tips and prompts |
| Name & email | Optional (Apple Sign-In) | Account, support, restore purchases |
| Device & usage data | Yes (anonymized) | App improvement, analytics |
| Payment data | No | Handled by Apple App Store |
| Location | No | Not required |
| Face geometry / biometric templates | No | We do not create these |
Because Mirror Diary's core function involves analyzing photos of your face, this section is critically important. Please read it carefully.
You capture selfies using the in-app camera. We do not access your existing photo library, and we do not read photos you have taken outside of Mirror Diary. The first time you tap the camera button, iOS will prompt you for camera permission. You can revoke this permission at any time via your device's Settings app.
When you complete a scan, the selfie is uploaded to a private, access-controlled cloud bucket on Supabase Storage (hosted in the United States, region us-east-1). Each file is stored under a path that only your account can access, enforced by row-level security policies at the database layer. We never publish, link, or expose your selfies on a public URL. Inside the app, photos are displayed via short-lived, signed URLs that expire automatically.
To generate your mirror score, your selfie is sent over an encrypted (TLS/HTTPS) connection to OpenAI's API (specifically, the GPT-4o Vision model). OpenAI returns a structured analysis: category scores, an overall score, and tips. We do not send your name, email, or any other identifying information alongside the photo. Per OpenAI's API data usage policy in effect at the time of writing, content submitted via the API is not used to train OpenAI's models by default.
The structured analysis text is then stored in our database alongside the photo path. The selfie itself remains in our Supabase storage; it is not stored on OpenAI's servers beyond the brief processing window.
Because of the above, Mirror Diary does not fall under the definition of "biometric data processing" under the EU GDPR Article 9 or the Illinois Biometric Information Privacy Act (BIPA). However, we treat your selfies with the same level of care and confidentiality as biometric data would require.
You can delete individual scans or your entire account from inside the app. Deletion is permanent — the photo file is removed from our storage backend and the database record is purged within 30 days. Cached signed URLs expire on their own within one hour and cannot be regenerated after deletion.
We use the information we collect for the following purposes:
We do not use your information to serve you ads. We do not sell your data to any third party for marketing purposes. We do not use your selfies to train AI models, ours or anyone else's.
We share your information only in the following limited circumstances:
We work with trusted third-party vendors who process data on our behalf under their respective data processing terms:
If we add new service providers in the future, we will update this policy and the table in Section 12.
We may disclose your information if required to do so by law, court order, or governmental authority, or if we believe disclosure is necessary to protect the rights, property, or safety of Mirror Diary, our users, or others.
If Mirror Diary is acquired, merged, or its assets are transferred, your information may be transferred as part of that transaction. We will notify you via email or in-app notice if this occurs and the new owner's privacy practices materially differ from ours.
We may share your information in other ways if you give us explicit consent to do so.
We retain your data for as long as your account is active or as needed to provide you with the service.
When you delete your account through the app, all your personal data — including every selfie, every scan record, your preferences, and your onboarding inputs — is permanently deleted within 30 days. Anonymized, aggregated analytics data that cannot identify you may be retained.
You have the following rights regarding your personal information:
To exercise any of these rights, contact us at mirrordiaryapp@gmail.com or use the in-app options.
Mirror Diary sends one push notification per day at approximately 7:30 PM local time to remind you to take your daily mirror. This is the only scheduled notification category.
We will request your permission to send notifications after you complete your first scan. You may:
We do not send marketing or promotional push notifications without your explicit consent.
Mirror Diary is intended for users aged 16 and older. We do not knowingly collect personal information from children under 16. If you are between 16 and 18, you must have the consent of a parent or legal guardian to use the Service.
If you are a parent or guardian and believe your child under 16 has provided us with personal information or uploaded a selfie, please contact us at mirrordiaryapp@gmail.com and we will promptly delete the information.
We take the security of your personal information — especially your selfies — seriously. We implement the following measures:
No method of electronic transmission or storage is 100% secure. While we strive to use commercially acceptable means to protect your information, we cannot guarantee absolute security. If you suspect unauthorized access to your account, contact us immediately at mirrordiaryapp@gmail.com.
Mirror Diary operates primarily in the United States. Our Supabase infrastructure is hosted in the us-east-1 region. OpenAI's API endpoints are also located in the United States. If you access Mirror Diary from outside the United States, your information — including your selfies — will be transferred to and processed in the United States.
For EEA and UK users, such transfers are made pursuant to the European Commission's Standard Contractual Clauses or equivalent safeguards offered by our processors.
Mirror Diary integrates with the following third-party services. Each operates under its own privacy policy:
| Service | Purpose | Privacy Policy |
|---|---|---|
| Supabase | Auth, database, file storage | supabase.com/privacy |
| OpenAI | AI selfie analysis | openai.com/policies/privacy-policy |
| RevenueCat | Subscriptions | revenuecat.com/privacy |
| Apple | Sign-in, App Store, push delivery | apple.com/legal/privacy |
| Google Analytics | Anonymous website analytics (mirrordiary.app only) | policies.google.com/privacy |
We are not responsible for the privacy practices of these third-party services and encourage you to review their policies.
Mirror Diary is built to help you track personal change over time. It is not designed to:
If you have a history of eating disorders, body dysmorphic disorder, low self-esteem related to appearance, or any condition where appearance-focused content is contraindicated for your wellbeing, we strongly encourage you to consult a qualified mental health professional before using Mirror Diary. Resources include the National Alliance for Eating Disorders (allianceforeatingdisorders.com) in the United States and similar national bodies elsewhere.
By using Mirror Diary, you acknowledge that the AI score is subjective, may be wrong, and should not be interpreted as a measurement of personal value.
If you are a California resident, you have the following rights under the California Consumer Privacy Act (CCPA) and California Privacy Rights Act (CPRA):
To exercise your California rights, contact us at mirrordiaryapp@gmail.com with the subject line "California Privacy Request."
Categories of personal information collected in the past 12 months: Identifiers (device ID, optional name and email), Internet activity (usage data), commercial information (subscription status), visual content (selfies you capture), inferences drawn from the above (AI-generated scores and tips).
Business or commercial purpose: Service provision, analytics, subscription management. We do not sell personal information.
If you are located in the European Economic Area (EEA) or United Kingdom, you have additional rights under the General Data Protection Regulation (GDPR) or UK GDPR:
To exercise these rights, contact us at mirrordiaryapp@gmail.com. We will respond within 30 days.
We may update this Privacy Policy from time to time. When we make material changes, we will notify you by:
Your continued use of Mirror Diary after the effective date of the updated policy constitutes acceptance of the changes. If you do not agree with the updated policy, please delete your account before the effective date.
If you have questions, concerns, or requests regarding this Privacy Policy or your personal data, please contact us:
📧 Email: mirrordiaryapp@gmail.com
🌐 Website: mirrordiary.app
We aim to respond to all privacy-related inquiries within 5 business days and to data deletion requests within 30 days.