Privacy Policy
Last updated: 2026-10-20
Cinnie is operated by Hamata LLC (Alabama, USA). You can reach us at support@getcinnie.com.
1. Account data we store on our servers
- Email address; display name; password, stored only as a one-way hash (Argon2), never in readable form; date joined.
- A seller flag, seller rating and number of sales, if you sell.
- An optional tax ID field you can fill in as a seller.
- Saved shipping addresses you add (label, street, city, state, ZIP, country).
- Saved payment-method labels you add — display details only (a label, card brand, last four digits). We do not store full card numbers or process payments today.
- A record of signed-in devices: we keep a scrambled (hashed) version of each device's session token so you can be signed out remotely.
2. Content you create
Collections, decks, cards you own, saved search filters, and marketplace listings.
3. On your device
The app keeps copies of your data and pending edits on the phone so it works offline, plus your sign-in session in the operating system's secure storage (Keychain or Keystore). On the web, a sign-in session is kept in the browser tab's session storage. Android cloud backup of app data is turned off.
4. How we use data
To run your account and the features you use, sync your data across devices, show sellers' listings and seller ratings to other users (listings are public by nature), keep the service secure, and answer support requests. We don't sell personal data and we don't show ads.
5. Analytics and tracking
The app contains no third-party analytics, advertising or tracking SDKs today. Planned: crash and error reporting to fix bugs. This policy will be updated, and the app's store privacy labels changed, before that ships.
6. Service providers
Our servers and website run on cloud hosting providers, who process data only to host the service for us. Card catalog data and images come from licensed data providers, and no personal data is sent to them. Card images are served from our own servers.
7. Payments (planned)
Pro subscriptions will be sold through Apple's App Store and Google Play. Those companies process the payment, and we receive confirmation of your subscription, not your card details. This policy will be updated before any other payment method is added.
8. Retention and deletion
We keep your data while your account exists. You can delete your account in the app (Account, then delete account, which asks for your password). That deletes your account and the data linked to it from our servers, and clears the app's offline copy on that device. You can also email support from your account's email address.
9. Your choices
Edit your display name and seller settings in the app, delete your account, or email us to correct or remove saved addresses or payment labels, request a copy of your data, or ask questions.
10. Children
Cinnie is not directed to children under 13, and we don't knowingly collect personal information from children under 13. If you believe a child under 13 has created an account, email us and we'll delete it.
11. Security
Passwords are hashed, connections use HTTPS, and sign-in tokens are stored in your device's secure storage.
12. Changes
We'll post updates here with a new "Last updated" date and tell you in the app about material changes.
13. Contact
Hamata LLC — support@getcinnie.com.