1. Introduction and Scope

This Cookie Policy explains how BacInk (hereinafter referred to as "we," "the company," or "BacInk") uses cookies, localStorage, sessionStorage, pixels, tags, and related technologies (collectively referred to as "cookies and similar technologies") on our websites, member accounts, Eink Mode, subscriptions, payments, customer service, and related services.

This policy should be read in conjunction with our privacy policy and terms of service. If you do not agree to our use of non-essential cookies as described in this policy, you may refuse or disable these cookies; however, necessary cookies and similar technologies may still be required for functions such as login, membership, subscriptions, payments, security, and language preferences.

1.1 Translated Versions

This document may provide translations in other languages. In the event of any conflict, uncertainty, or apparent inconsistency between the translated version and the traditional Chinese version, the traditional Chinese version shall prevail.

2. What Are Cookies and Similar Technologies?

Cookies are small text files stored on your browser or device by websites to remember your settings, maintain your login state, provide security controls, analyze traffic, or improve services. localStorage and sessionStorage are local storage mechanisms provided by the browser, which can also be used to save preferences, consent states, or essential session data.

  • First-party Cookies: Set directly by the BacInk website or service, used for essential functions, preferences, security, and service improvements.
  • Third-party Cookies: Set by Google Analytics, Supabase, Google, NewebPay, PayPal or other third-party services in their service contexts.
  • Session Cookies: Typically expire when you close your browser or end the session.
  • Persistent Cookies: Remain on your device for a period of time until they expire, are overwritten, or are manually deleted.

3. Cookies and Local Storage We Use

3.1 List of Cookies and Local Storage

Name or Type Type Purpose Expiration Provider
preferredLanguage Essential/Preference Stores your preferred language to display the website in that language Depends on browser or service settings, until expiry or cleared BacInk
bacink_cookie_consent Essential/Consent Management Records your cookie consent or opt-out status to determine whether to load Google Tag Manager or analytics tools (defaults to load unless you have opted out) Depends on browser or service settings, until expiry or cleared BacInk
Authentication, session, and permission-related data Essential Maintains login state, authentication processes, member accounts, subscription permissions, Eink Mode features, security controls, and abuse prevention. Depending on the session, authentication service, and security settings BacInk / Supabase
Payment, subscription, or transaction-related data Essential Supports payment processing, transaction status confirmation, subscription management, refunds, risk control, and payment security Depends on the payment process, payment service, and legal requirements. BacInk / NewebPay / PayPal
_ga, _ga_* or other analytics identifiers Analytics Analyzes website traffic, page views, feature usage, errors, and service effectiveness Depending on Google settings, typically lasts about 2 years Google Analytics

3.2 Categorized by Purpose

3.2.1 Necessary Cookies

Necessary cookies and similar technologies are used to provide basic functions of the service, including language preferences, cookie consent status, login, authentication, member accounts, Eink Mode, subscription permissions, payment processes, security, fraud prevention, and abuse prevention. Disabling these technologies may cause some or all functions of the service to not work properly.

3.2.2 Preference Cookies

Preference cookies are used to save your language, display, or usage preferences, so you do not have to set them again when you use the service.

3.2.3 Analytics Cookies

Analytics cookies are used to understand how users interact with the website, such as page views, clicks, time spent, referring pages, device and browser information, errors, and performance data. This information helps us improve our website, Eink Mode, and related services. We adopt implicit consent for analytics cookies: they default to load when you enter the website, and continuing to browse indicates consent; you can opt-out anytime via the "opt-out" link in the cookie notification banner.

4. Google Tag Manager and Google Analytics

We may use Google Tag Manager to load Google Analytics or other analytics tools. The site employs an implicit consent model: the program will read the localStorage bacink_cookie_consent; it will load Google Tag Manager when you enter the site unless that value is declined (indicating that you have opted out). In other words, even visitors who have not made a choice will have the analytics tools loaded, and continuing to browse this site signifies consent.

Google Analytics may process cookie IDs, page views, interaction data, device and browser information, approximate geographic location, and IP addresses processed according to Google settings. Google will handle such data according to its privacy policy.

You can install the Google Analytics Opt-out Browser Plugin, or block third-party cookies in your browser to reduce Google Analytics tracking.

For more information, please refer to the Google Privacy Policy and Google Analytics Security and Privacy Principles.

5. Third-party Cookies and Payment Services

When you use third-party login, payment, subscription, customer service, or other integrated services, third-party service providers may set cookies or similar technologies on your browser or device according to their policies. Such third-party technologies are governed by their respective terms of service and privacy policies.

  • Supabase: Account login, authentication, session, and security control.
  • Google: Authentication when you choose third-party login.
  • NewebPay: Domestic payments, credit card verification, transaction authorization, deductions, refunds, risk control, and transaction security.
  • PayPal: International or cross-border payments, transaction authorization, deductions, refunds, risk control, and transaction security.
  • Google Analytics: Website analysis and service improvement.

We cannot control the actual setting, expiration, or usage of third-party cookies. For cookies on payment pages, third-party login pages, or external pages like PayPal, please refer to the policies of the respective third-party service providers.

6. How to Manage, Withdraw, or Delete Cookies

6.1 Cookie Consent

This site adopts implicit consent for non-essential (analytics) cookies: they are loaded by default when you enter the website, and continuing to browse indicates consent. You may opt out of analytics cookies anytime via the "opt-out" link in the cookie notification banner; after opting out, the site will save the state as bacink_cookie_consent declined and will no longer load analytics tools. If you wish to reset this state, you can clear the cookies and localStorage for this site.

6.2 Browser Settings

Most browsers allow you to view, block, or delete cookies. You can refer to the instructions for the following browsers:

6.3 Impact of Disabling or Deleting Cookies

If you disable, block, or delete cookies and local storage data, you may encounter the following effects:

  • The website may not remember your language or cookie consent preferences.
  • You may need to log in again or not be able to maintain your membership session.
  • Eink Mode, membership pages, subscription permissions, payment processes, or security verifications may not function properly.
  • Payment services, third-party logins, or third-party security verifications may not be completed.
  • It will be harder for us to improve the website and product experience through aggregated data analysis.

7. Cookies and Personal Data

Cookies and similar technologies may be processed along with your IP address, device information, browser information, account status, subscription status, payment process, or product usage records. For information regarding the collection, use, storage, third-party sharing, cross-border transfer of related personal data, and your rights, please refer to our privacy policy.

8. Updates to the Cookie Policy

We may update this cookie policy from time to time to reflect changes in our services, cookie usage, third-party services, legal requirements, or operational needs. Significant changes will be communicated to you through website announcements, member centers, emails, or other appropriate means.

9. Contact Us

If you have any questions about this cookie policy, cookie settings, or personal data processing, please contact us through the following means:

  • Email: bacink.contact@gmail.com

10. Related Policies

This cookie policy should be read together with the following policies:

11. Effective Date

This cookie policy is effective as of December 23, 2025.

Last Updated: July 23, 2026