Privacy

Appendix

Select Auto to remove your manual language preference.

Learn how Google uses data from partner websites, Google privacy policy and Cloudflare privacy policy. Manage progress, play history, and login data at account page.

Summary

The website introduces games and provides English learning content for people aged 13 and over. You can learn and play with progress saved in your browser; signing in is optional, and sign-in reminders appear at most once per session and no more than once every 24 hours. When you sign in with Google, your account profile includes your name and email; learning progress, scores, and play history are saved for access on other devices. You can sign out or delete your account data on your account page. The website currently does not load Google AdSense ads. The website selects a language using your IP country. Your VI/EN preference is saved in a cookie for up to one year.

User age

English lessons and practice games are intended for people aged 13 and over.

The English learning area is not designed for children under 13. The website does not intentionally collect personal data from children under 13 and does not collect dates of birth to verify age.

If you believe the website holds personal data belonging to someone under 13, please email the studio so we can investigate and handle a request to delete the data. Contact us about user data.

Browser data

The English school district uses browser memory to save progress, review schedules, notes and game results. Customer data and backups for each account are kept separate. After logging in, you can proactively include guest processes on your device into your account. If the connection is interrupted, changes continue to be saved on the device and are sent again when the connection resumes or when you select synchronization.

Login is not required. On the progress page, the website can suggest logging in up to once per session and at least 24 hours after the previous prompt. The prompted time and session flags are saved in the browser to limit recurring popups; You can close the suggestion and continue learning or playing.

You can clear website data in your browser settings; This may cause unsynchronized progress to be lost. Logging out ends the session on this machine and returns to the guest process; The saved copy of the account remains in the browser to continue the next time you log in. On a shared machine, delete website data after use if you want to get rid of these saves.

Google login and account progress

The website uses Google to verify sign-ins. Account profiles store your name, email address, an internal identifier, and recorded registration and most recent sign-in dates. Administrators can view registered accounts, update display names, suspend access, or delete accounts. Saved progress includes viewed and saved items, notes, review schedules, lesson results and positions, best game scores, and audio preferences. This applies to the English lessons and games on this website.

Data is stored on Cloudflare D1. Users access their own data through their signed-in session; authorized administrators can view play history in the CMS. Session cookies required for login have a maximum duration of 30 days; The login verification cookie lasts 10 minutes. Profile picture information and other Google data are not saved to your account profile. The website does not save passwords or Google login tokens.

The “Delete account data” button deletes records, server progress, login sessions, and account saves on the browser in use. Saves on other devices need to be deleted in each browser's settings. Progress is kept until you request deletion.

Play history

The website automatically saves each finished English game and each completed lesson practice, review, or retry session. Results include the game type, lessons played, start and end times, score, correct, incorrect and missed answers, hints used, answers recalled without hints, gift lives, and the reason the run ended. Elapsed time includes pauses. Runs abandoned or restarted before a result are not recorded.

Guest results are saved only on the device. When you sign in, new results are uploaded to your account; guest data is merged only when you choose to import it. The browser keeps the 100 most recent synced runs and all runs waiting to upload; server history is retained until the account is deleted. Authorized administrators can view account-linked results in the CMS. Results are reported by the browser and are not verified for rankings or rewards. Deleting account data also deletes server play history and the account cache in the current browser.

Advertising and cookies

The website currently does not load Google AdSense ads.

When Google AdSense ads are enabled, Google and third-party advertising providers may use cookies to serve ads based on your visits to this and other websites. Google advertising cookies allow Google and its partners to personalize ads based on that activity. When serving ads, third parties may set or read cookies and use web beacons and IP addresses to collect information.

You can manage or turn off personalized ads at Google advertising center, or manage options with several providers at YourAdChoices. You can also manage cookies in your browser settings. These choices do not necessarily remove all ads.

Language by region

The website uses the country code Cloudflare determines from your IP address to select Vietnamese for Vietnam and English elsewhere. When you select VI or EN, the studio.language cookie remembers your choice for up to one year. Selecting Auto removes this preference. The language cookie is not linked to your Google account.

External services

Website is hosted on Cloudflare Pages. Hosting services can process technical information of access requests, such as IP address, browser and URL, to operate and protect the website. See Cloudflare privacy policy. Outbound links are governed by the destination website's policies.