Privacy Policy

1. Our approach

We, the operator of the iOS app ERC Calculator ("the app") and this website (together, "the service"), handle information collected through the service in accordance with Japan's Act on the Protection of Personal Information (APPI) and other applicable law, as described below.

2. Information the app handles

The app needs no account. It does not collect your name, email address, phone number, location, contacts or advertising identifier, and it sends no usage analytics or advertising data.

1. Model and serial number: sent to our server only to issue the unlock code, and not stored afterwards.
2. Purchase verification: payment is processed by Apple through in-app purchase, and we never receive your card details. To prevent misuse, our server checks the purchase information signed by Apple, and does not store it afterwards.
3. On your device: so that your code is always delivered after payment, the app keeps the model and serial number you entered on your device for a short time. This never leaves your device.

3. Information this website handles

1. Enquiries: your name, email address, topic and message, and optionally the model and serial number, used only to answer you.
2. Chat enquiries: if you contact us through LINE, your messages and your LINE display name and profile picture.
3. Request logs: our servers briefly log IP address, browser type and access time to keep the site secure.
4. Analytics: we use Google Analytics, provided by Google LLC, to understand and improve how the website is used. You can stop this by disabling cookies in your browser.

4. Contact

For questions about this policy or our handling of personal information:

• Operator name and address: disclosed without delay on request
• Email: support@erccodeunlocker.com