✨ Hotify: My Glow Up Diary — Privacy Policy

Last Updated: June 2, 2026

Developer: SidinTech | Contact: sidinartech@gmail.com

1. Introduction

Hotify ("we," "our," or "the App") is a facial wellness application that analyzes facial features using artificial intelligence to provide personalized skincare and wellness insights. This Privacy Policy explains how we collect, use, store, and protect your information.

By using Hotify, you agree to the collection and use of information as described in this policy.

2. Facial Images and Face Data

Hotify analyzes a facial photo you provide to generate cosmetic and wellness insights. Your photo is sent to OpenAI for one-time analysis and is not used to identify you. We do not create biometric identifiers or faceprints. The photo is never stored on our servers and is deleted after analysis; only the text results are saved to your account. The photo is not used for advertising or to train AI models.

In more detail:

  • What we collect: A single facial photo (selfie), captured with the camera or selected from your photo library, only when you initiate a scan. We do not create or store faceprints, face templates, or any biometric identifiers.
  • How it is used: The photo is used solely for a one-time AI analysis that produces cosmetic/wellness scores, text insights, and a personalized skincare routine. It is not used for identification, authentication, advertising, profiling, or model training.
  • Sharing and storage: The photo is transmitted securely over HTTPS/TLS to OpenAI, L.L.C.'s GPT-4 Vision API, acting as our data processor. The photo itself is never stored on our servers or in Firebase Storage. Only the derived text results (scores, insights, routine) are stored in Firebase Firestore, linked to your account. Per OpenAI's API data policy, API inputs are not used to train their models and are retained by OpenAI for at most 30 days for abuse monitoring, then deleted. We have confirmed that OpenAI, L.L.C. provides data protection that is equal to or greater than the protections described in this Privacy Policy; its processing of data submitted through its API is governed by its own privacy and enterprise data policies, available at https://openai.com/policies.
  • Retention: The photo is processed in transit/in memory and discarded immediately after the analysis completes; we do not persist it. Derived (non-image) results remain until you delete your account.

3. Other Information We Collect

3.1 Account Information

We use anonymous authentication (Firebase Authentication). We do not require your name, email address, or phone number to use the App. A unique anonymous identifier is assigned to your account.

3.2 Profile Information

Gender and age range (provided voluntarily during onboarding) to personalize analysis metrics.

3.3 Usage Data

  • Scan history and scores
  • Routine completion data
  • Subscription status
  • App interaction events (when analytics are enabled)

3.4 Device Information

  • Device type and operating system version
  • App version
  • Crash logs and performance data (when crash reporting is enabled)

3.5 Purchase Information

Subscription status and billing period are managed through Apple's In-App Purchase system via RevenueCat. We do not have access to your payment method or billing details.

4. How We Use Your Information

We use collected information to:

  • Analyze facial features and generate wellness scores
  • Provide personalized skincare routines and recommendations
  • Track your progress over time
  • Manage your subscription status
  • Improve app performance and fix bugs
  • Send routine reminders (with your permission)

5. Data Sharing and Third-Party Services

We use the following third-party services:

ServicePurposeData Shared
Firebase (Google)Authentication, data storageAnonymous ID, profile, scan results
OpenAIFacial analysis AI processingPhotos (transmitted for processing only; not stored on our servers, not used for training per OpenAI API terms; retained by OpenAI up to 30 days for abuse monitoring, then deleted)
RevenueCatSubscription managementAnonymous ID, purchase status
MixpanelAnalytics (when configured)Anonymous usage events
SentryCrash reporting (when configured)Crash logs, device info
Apple (App Store)Payment processingManaged entirely by Apple

We have confirmed that each third-party service listed above, including OpenAI, L.L.C., provides data protection that is equal to or greater than the protections described in this Privacy Policy. Your facial photo is shared only with OpenAI, L.L.C. for one-time analysis, and only after you provide explicit in-app consent before the photo is sent.

We do not sell, rent, or trade your personal information to third parties for marketing purposes.

6. Data Storage and Security

  • Your data is stored securely using Firebase Cloud Firestore with appropriate security rules.
  • Photos sent for analysis are transmitted over encrypted connections (HTTPS/TLS).
  • We implement reasonable security measures to protect your data from unauthorized access.
  • Scan results and routine data are associated with your anonymous account ID.

7. Data Retention

  • Face photos: Retained only for the duration of the AI analysis API call (typically under 60 seconds). The photo is never written to disk or permanently stored on any server controlled by us. (OpenAI may retain API inputs for up to 30 days for abuse monitoring before deletion, per their API data policy.)
  • Analysis results: Scores, insights, and color analysis are retained as long as your account is active.
  • You can delete all your data at any time through Settings > Delete All Data in the App.
  • Upon deletion, all scan results, profile information, and routine history are permanently removed from our servers.

8. Children's Privacy

Hotify is not intended for children under the age of 13. We do not knowingly collect information from children under 13. If you believe a child has provided us with personal information, please contact us immediately.

9. Your Rights

You have the right to:

  • Access your data (visible within the App)
  • Delete all your data at any time (Settings > Delete All Data)
  • Opt out of notifications (via iOS Settings)
  • Cancel your subscription at any time

10. Push Notifications

We may send push notifications for routine reminders. You can disable notifications at any time through your device's Settings.

11. Health and Wellness Disclaimer

Hotify provides AI-generated wellness insights and routine suggestions for informational purposes only. The app does not provide medical advice, diagnosis, or treatment. Always consult a qualified healthcare professional before making changes to your skincare, diet, or exercise routine. Where health-related claims are made, citations from reputable sources (such as the American Academy of Dermatology, NIH, or WHO) are provided where applicable.

12. Changes to This Policy

We may update this Privacy Policy from time to time. Changes will be reflected by updating the "Last Updated" date. Continued use of the App after changes constitutes acceptance of the updated policy.

13. Contact Us

If you have questions or concerns about this Privacy Policy, contact us at:

Email: sidinartech@gmail.com

Website: https://sidintech.com/

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