Privacy Policy

Chrooma — Color Education App · Effective March 2, 2026

The short version

No account required — anonymous sessions only
No email, no password, no personal information collected
Your palettes, scores, and preferences stay on your device
No advertising, no cross-app tracking, no IDFA
Analytics are anonymous and you can opt out anytime
Payments are handled entirely by Apple / RevenueCat

1. What We Collect

Chrooma is designed to work without personal information. Here is exactly what data exists and where it lives:

Data	Where it lives	Identifiable?
Palettes, challenge scores, Color Imprint profile, preferences	Your device only (localStorage / IndexedDB)	No
Anonymous session ID (random UUID)	Your device only (localStorage)	No — not linked to any personal info
Anonymous usage events (e.g. "palette saved", "challenge completed")	PostHog (EU servers)	No — tied to random ID only
Purchase entitlements (what you bought)	RevenueCat + Apple	Linked to anonymous ID only

We never collect: names, email addresses, passwords, phone numbers, location data, photos (camera access is used for on-device color extraction only — images never leave your device), advertising identifiers (IDFA), or any content you create in the app.

2. Anonymous Authentication

When you first open Chrooma, a random identifier (UUID) is generated locally on your device. This ID is not linked to your identity in any way — there is no server account, no sign-up, no login. It is stored only in your device's local storage. If you delete and reinstall the app, a new ID is created.

3. Analytics

We use PostHog (hosted on EU servers) to understand how people use Chrooma — for example, which features are popular and where people get stuck. All analytics events are anonymous and contain no personal information.

No autocapture: We only track manually defined events (page views, feature usage). No automatic click or DOM tracking.
No session recording: Session replay is disabled.
Do Not Track: If your browser or device sends a Do Not Track signal, analytics are not loaded at all.
Opt out: You can disable analytics in the app's Settings at any time. When disabled, no events are sent to PostHog.

PostHog sets a small cookie and localStorage entry to maintain a consistent anonymous ID across sessions. This cookie contains no personal data.

4. In-App Purchases

Purchases are processed by Apple (App Store) and managed through RevenueCat. We never see, process, or store your payment information (credit card, Apple ID, etc.). RevenueCat receives only your anonymous app ID to manage purchase entitlements. See RevenueCat's privacy policy for details.

5. Third-Party Services

Chrooma uses two third-party services. No other third-party SDKs transmit data from your device.

Service	Purpose	Data shared	Privacy policy
PostHog	Anonymous analytics (EU-hosted)	Anonymous usage events	Link
RevenueCat	In-app purchase management	Anonymous ID + entitlement status	Link

6. Data Storage & Security

All content you create (palettes, challenge scores, Color Imprint profiles, preferences) is stored exclusively on your device using localStorage and IndexedDB. This data is never uploaded to any server.

All third-party communication (analytics, purchases) uses HTTPS. PostHog data is transmitted over HTTPS to EU-hosted servers.

7. Data Retention

On-device data: Retained until you clear the app's data, delete the app, or use the in-app option to reset your data.
PostHog analytics: Retained per PostHog's data retention policy. Events cannot be traced to you personally.
RevenueCat: Purchase records are retained to manage your entitlements. See their privacy policy for details.

8. Your Rights

For all users

Delete local data: Clear your palettes, scores, and preferences at any time through your device settings or by deleting the app.
Delete server-side data: Email us at chroomacolors@gmail.com with your anonymous user ID (found in Settings) and we will request deletion from PostHog and RevenueCat.
Opt out of analytics: Toggle analytics off in the app's Settings.

For EU/EEA residents (GDPR)

Under the General Data Protection Regulation, you have the right to:

Access — request a copy of any data associated with your anonymous ID
Rectification — request correction of inaccurate data
Erasure — request deletion of your data ("right to be forgotten")
Restriction — request that we limit processing of your data
Portability — receive your data in a portable format
Object — object to processing of your data

Our legal basis for processing anonymous analytics data is legitimate interest (understanding app usage to improve the product). Since we process no personal data, most GDPR provisions apply in a limited scope. To exercise any right, contact chroomacolors@gmail.com.

For California residents (CCPA)

Under the California Consumer Privacy Act, you have the right to:

Know what data we collect — described fully in this policy
Delete your data — contact us as described above
Opt out of sale — we do not sell, share, or rent any data to third parties
Non-discrimination — exercising your rights will not affect the service you receive

9. Children's Privacy

Chrooma does not knowingly collect data from children under 13. Since we collect no personal information from any user, there is no age-gated content or data to protect. The app is suitable for all ages.

10. International Data Transfers

Analytics data is processed by PostHog on EU servers. RevenueCat may process data in the United States under standard contractual clauses and/or equivalent safeguards. Since all data is anonymous, the risk to your privacy from these transfers is minimal.

11. Changes to This Policy

We may update this policy from time to time. Material changes will be communicated through the app or on this page. The "Effective" date at the top will always reflect the latest revision.

12. Contact

Questions, concerns, or data requests? Reach us at:

Email: chroomacolors@gmail.com

For general help and FAQs, visit our Support page. See also our Terms of Service.