COSME
Back to HomeLast Updated: November 2026
Official App & Platform Privacy Policy

Privacy Policy

This Privacy Policy describes how Cosme (“we”, “us”, or “our”), developed by FeeLogic / Tani Eisenstein, collects, uses, protects, and discloses personal information through the Cosme mobile application (Android & iOS) and the web platform at https://cosme.id.

Direct Policy Summary & Commitment

Cosme is an astrology, natal chart, and celestial almanac platform designed for personal exploration. We respect your privacy: we do not sell user data to data brokers or advertisers, we do not perform tracking across third-party apps, and you retain complete ownership and deletion rights over your personal birth data at all times.

1. Information We Collect

Data you provide directly and technical data required to operate the app

A.Account & Authentication Information

When you register an account on Cosme, we collect your email address, first name, last name, unique username (cosmeName), and an encrypted password hash. This information is used exclusively to authenticate your identity, manage your account, and synchronize your charts across devices.

B. Astrological Birth Data (Sensitive User Input)

To calculate accurate natal radix charts, planetary cycles, house cusps, and synastry overlays, you may enter:

  • Date of birth (year, month, day)
  • Exact or approximate time of birth (hour, minute)
  • Place of birth (city, country, and resolved latitude and longitude coordinates)

This data is strictly utilized by our mathematical ephemeris calculation engines (astronomy-engine and natalengine) to calculate celestial positions and generate visual starmaps.

C.User-Generated Content & Profiles

You may store multiple charts (family, friends, historical figures), add personal notes, tags, create custom synastry comparisons, and submit comments on public Starbase entries.

D.In-App Purchase & Financial Information

Cosme offers optional one-time capacity booster packs (+50, +200, +1000 chart slots). All mobile in-app transactions are processed directly by Google Play In-App Billing (on Android) or Apple In-App Purchase (on iOS). On web, transactions are processed via Stripe. Cosme never accesses, processes, or stores your credit card numbers or banking credentials.

E.Device & Technical Information

When you use our services, we may collect technical data such as your IP address, device type, operating system version, browser type, and anonymous crash logs. This data is used solely for network security, diagnostics, and ensuring platform stability.

2. How We Use Collected Information

Purposes of data processing

  • Astrological Calculations: Computing natal planetary positions, houses, transits, and synastry overlays.
  • Multi-Device Cloud Synchronization: Synchronizing your saved charts and preferences securely across mobile and web.
  • Account Management & Security: Authenticating user sessions, verifying email addresses, and preventing fraud.
  • Purchase Fulfillment: Crediting one-time chart capacity packs to your account upon confirmation from Google Play or Apple billing.
  • Customer Support: Responding to inquiries, feedback, and bug reports sent to our support desk.

3. Camera & Photo Library Permissions

Explicit disclosure regarding image uploads

The Cosme mobile app provides optional features allowing users to customize their profile picture or associate a visual avatar with their saved natal charts:

  • Camera Permission: Used solely when you choose to take a photo directly inside the app to set as your profile picture or chart avatar.
  • Photo Library / Storage Permission: Used solely to allow you to select an existing image from your photo gallery and adjust, zoom, or crop it before setting it as an avatar.
  • No Secondary Use: Uploaded images are stored securely in encrypted private cloud storage and are used solely to display your chosen avatar. We never scan images for biometric recognition, never use photos for advertising, and never sell or share images with third parties.

4. Data Sharing & Third-Party Processors

We do NOT sell personal data

Cosme does NOT sell, rent, or trade your personal data, birth dates, or location coordinates to third parties, data brokers, or advertisers.

We only disclose data to trusted infrastructure and service providers strictly necessary to deliver our services, under confidentiality agreements:

App Store & Billing Systems:

Google Play In-App Billing (Google LLC) and Apple StoreKit (Apple Inc.) to process mobile purchases.

Cloud Hosting & Databases:

Secure European Union servers and encrypted object storage for account records and chart backups.

Geocoding & Mapping:

Mapbox and OpenStreetMap APIs to convert city names into latitude/longitude for chart calculations.

Payment Processing (Web):

Stripe Inc. for secure credit card handling on web transactions.

5. Data Retention & Your Right to Erasure

Complete control over your personal data

In compliance with the General Data Protection Regulation (GDPR), California Consumer Privacy Act (CCPA), and Google Play user data standards:

  • Direct Account Deletion: You can delete individual charts or permanently delete your entire account and all associated birth records directly within the mobile app (under Settings > Delete Account) or on the web settings page.
  • Immediate Erasure: Upon account deletion, all personal data, email addresses, charts, synastry links, and profile photos are immediately and permanently removed from active databases.
  • Data Deletion Requests by Email: You may also request deletion of your data at any time by emailing our Data Protection Officer at tanieisenstein@gmail.comwith the subject “Data Deletion Request”. Requests are honored within 30 days without charge.
  • Security Measures: We employ end-to-end HTTPS/TLS encryption for all data in transit, salted password hashing, and strict role-based access controls for server environments.
6. Children's Privacy (COPPA & GDPR-K)

Cosme is not directed to individuals under the age of 13 (or under 16 in the European Economic Area). We do not knowingly collect personal information from children. If you believe a child has provided us with personal data, please contact us immediately at tanieisenstein@gmail.com, and we will promptly remove such records from our systems.

7. Data Controller & Contact Information

If you have questions, concerns, or requests regarding this Privacy Policy or your personal data, please contact the developer:

Application Name: Cosme (Mobile & Web)
Developer / Controller: FeeLogic / Tani Eisenstein
Location: Berlin, Germany (European Union)
Support & Contact Portal: https://cosme.id/contact