Privacy

  • 600 words (~ 9 minutes)

Chinese Boost is run by Kensio Software. This page says what happens to your personal data when you use the site.

When you have no account

Nothing is collected. The site loads no analytics, no advertising, no social widgets and no fonts or scripts from anywhere else. There is no tracking to opt out of because none was built.

When you create an account

An account stores your email address, a password, an identifier generated for you, and a record of each device you are signed in on.

The password is held by Amazon Cognito and is never visible to this site. The identifier is ours and is what your saved work is filed under.

Why: to give you an account and keep you signed in. The lawful basis is performance of a contract, which is the service you asked for. Keeping the sign-in pages resistant to abuse relies on legitimate interests.

Your email address is used to confirm the account and to reset a password. It is not used for marketing.

Lookup history

Lookup history is optional. You can enable, pause or clear it on your account’s lookup history page. It records visits to dictionary entries and example sentences while you are signed in. Free history holds up to five distinct words and sentences for 30 days after each lookup. Pro history holds up to 1,000 for 365 days. Repeated lookups refresh that period.

We also keep a separate internal archive of pseudonymous lookup events to explore related-word features. These events identify the reader using an internal identifier, the word or sentence, and the time of the lookup. They exclude email addresses, passwords and authentication session identifiers. Archived events are retained indefinitely, including after active history expires, you clear it, or you delete your account. Pausing history stops future collection. Expired active history is hidden immediately. Background deletion and backup expiry happen later.

Where it is held

With Amazon Web Services, in their London region. Nothing is transferred outside the United Kingdom. AWS acts on our instructions and does nothing else with it.

Nothing is sold, and nothing is shared with anyone else.

How long it is kept

A sign-in record expires thirty days after it was created and is deleted automatically. Server logs are kept for one month. Your account and the work saved against it are kept until you ask for them to be deleted.

Cookies

Three, all of them necessary to sign you in and keep you signed in. One carries the identifier for your session, one holds a sign-in in progress for the few minutes it takes, and one tells the page whether to draw a sign-in or a sign-out link. None of them identifies you to anyone else and none is used for tracking, so there is no consent banner to click through.

Your rights

You can ask for a copy of your data, ask for it to be corrected, ask for it to be deleted, ask for it in a portable form, or object to how it is used. Write to privacy@chineseboost.com and it will be dealt with within a month.

No decision about you is made automatically, and nothing here builds a profile of you.

If you are unhappy with the answer you get, you can complain to the Information Commissioner’s Office at ico.org.uk.

Changes

This page is updated when what the site does changes. The date below is when it last did.

Last updated: 5 September 2026.