Privacy policy

Effective 2026-10-29. Cordiko is published by TenWorld Network. Contact: contact@cordiko.com.

We collect no personal data. There is no account, no advertising, no analytics, no crash reporting and no tracking. The app sends nothing to us, and we have no server.

What stays on your phone

Your progress is saved in the app's private storage: the game in progress, statistics per format, the history of your last 100 games (date, format, time, hints used), daily grid results, streak, achievements, the grids you have already seen, tutorial progress, settings and the list of purchases already unlocked. It does not leave your phone, except in the cases below.

• Export (Android): the "Export save" button writes this file where you choose. What you do with it is up to you.
• System backup and transfer: if you turned on Google or iCloud backup, or move your data to a new phone, the system may copy the app's data. This is handled by Google or Apple under their own terms; we have no access to it.
• Grid code: "Share this grid" copies a short grid code to your clipboard, only when you tap it.

Purchases

Premium and the packs are bought through Google Play or the App Store, which collect payment and billing details under their own terms. The app receives the purchase confirmation and keeps only the list of products you own, on your phone.

On Android, the app includes Google's Play Billing Library, which talks to Google Play for purchases and may send Google technical diagnostic data about how it works, under Google's privacy policy. This is the reason for the app's internet permission. We have no access to that data.

Children

Cordiko is suitable for all ages and we collect no data from anyone, children included.

Changes

If this policy changes, the new version will be published on this page with its date. Any change that would collect data would be announced in the app before it applies.