Privacy Policy

Effective date: July 28, 2026

This policy explains what data Comiku (“we”, “us”) collects, why, and the choices you have. Short version: we collect what's needed to run the app — your account, your creations, and purchase records — and we don't sell your data.

1. Data we collect

Account data — a random user ID; for guests, a device identifier; if you sign in, your email, display name and sign-in provider (via Firebase Authentication).
Your content — photos or sketches you upload as references, story prompts, and the comics/videos generated for you.
Purchase data — store transaction IDs, the pack bought, price and gem movements. We never see your card number; payments are handled by Apple / Google.
Usage & device basics — platform (iOS/Android), app version, language, and timestamps of activity (e.g. last seen), used for support and the forced-update system.
Support messages — tickets and messages you send us in-app or by email.

We do not collect precise location, contacts, or advertising identifiers, and we show no third-party ads.

2. How we use it

To operate the service: generate your pages and videos, keep your gem balance correct, sync your library across devices.
To process purchases and prevent fraud (verifying store receipts server-side).
To provide support and fix bugs.
To send service messages (e.g. required-update notices). We don't send marketing email without your consent.

3. AI processing

When you create, your prompt and reference images are sent to our AI providers (currently OpenRouter for images/text and fal.ai for video) strictly to generate your content. These providers act as processors for us and are not permitted to use your content to train their models where their terms allow us to disable it. Your content is never used to train models by us.

4. Where data lives & how long

Data is stored on our servers and media storage (Cloudflare R2 / compatible object storage). We keep your data while your account exists. If you delete your account, we delete your personal data, stories and uploads within 30 days, keeping only records we must retain by law (e.g. purchase/accounting records) for the legally required period.

5. Sharing

We share data only with the processors that make the app work: Firebase (authentication), Apple/Google (purchases), OpenRouter and fal.ai (AI generation), and our hosting/storage providers — each bound by data-processing terms. We do not sell personal data, and we disclose it to authorities only when legally required.

6. Your rights

Depending on your region (GDPR, CCPA and similar), you can request access, correction, export or deletion of your data, and object to or restrict processing. Use Profile → Support in the app or email [email protected] — we respond within 30 days. You can also complain to your local data-protection authority.

7. Account deletion

Delete in the app: Profile → Support → Delete account.
Or by email: send “Delete my account” to [email protected] from your account email.

8. Children

Comiku is not directed at children under 13 (or the applicable digital-consent age). We do not knowingly collect data from them; if you believe a child is using Comiku, contact us and we will delete the account.

9. Security

Data is encrypted in transit (TLS). Access to production systems is restricted and audited; gem movements are recorded in an append-only ledger. No system is 100% secure — if a breach affects you, we will notify you as required by law.

10. Changes

We may update this policy; material changes are announced in the app or here with a new effective date.

11. Contact

Privacy questions: [email protected] · our contact page