Privacy Policy

Dangerous Goods IMDG Smart Check (the "App") is published by Keelsync (Fatih Çetin, Türkiye). Last updated: 4 October 2026.

What the App does with your files

The BAPLIE (.edi / .txt) stowage plans you open are parsed and analysed entirely on your device. The file contents — vessel name, container numbers, cargo, ports — are never uploaded to us or to anyone else. Nothing you open is stored by the App beyond the current session, unless you choose to share the report yourself.

What we collect

• A hashed device identifier. To enforce the free allowance (first 7 stowage plans), the App sends a one-way SHA-256 hash of the Android device identifier (ANDROID_ID, combined with an app-specific salt) to our server at imdg.keelsync.app. We cannot reverse this hash and it identifies neither you nor your device outside this App.
• A hash of each free-tier file. Together with the device hash, the App sends a SHA-256 hash of the file's bytes, so that re-checking the same plan does not consume a second free credit. The hash does not reveal any content of the file.
• Sample-plan use. When you open the sample plan bundled with the App, the App sends only the hashed device identifier, so that we can count how many devices tried the sample. No file content and no file hash is sent, and the sample never uses a free credit.
• Purchase state. Subscriptions are processed by Google Play. We never receive your name, e-mail, payment card or address. Google's handling of purchases is governed by the Google Privacy Policy.

The App contains no advertising, no analytics SDK and no tracking. It does not request access to your contacts, location, camera or microphone. Network access is used only for the quota check above and for Google Play Billing.

Retention and deletion

Quota records (device hash, file hash, timestamp) are kept for as long as the free allowance is relevant, and at most 24 months after the last check. You can request deletion of the records for your device at any time: open Settings → Device ID in the App, copy the identifier, and e-mail it to fcetin282@gmail.com. We delete the matching records within 30 days. Deleting them resets nothing in your favour — a device whose records are deleted is treated as having used its free allowance.

Legal basis and your rights

Processing is based on our legitimate interest in offering a limited free tier and in the performance of the subscription contract. Under the GDPR and the Turkish KVKK you have the right to access, rectify and erase your data and to object to processing; use the e-mail address above. Data is hosted on a server in the European Union (Hetzner Online GmbH, Germany).

Children

The App is a professional tool intended for maritime personnel and is not directed at children under 16.

Changes

We will post any changes to this policy on this page and update the date above.

Contact

Keelsync — fcetin282@gmail.com