Privacy

Does the site use cookies or tracking?

The site does not set any cookies. It has no analytics and no advertising. It does not track you across other websites.

Google's own sign-in window may use Google's cookies. That happens only if you choose to sign in.

What is saved on your device?

Your progress is saved in your browser's local storage. It stays on your device. When you sign out, the site first saves your latest progress in your account, then removes it from this device. This is what is saved:

• Lessons you finished.
• Your best quiz score for each topic.
• The days you learned, for your streak.
• Where you stopped reading in each lesson.
• Your coins and badges.
• Your theme (light, dark or auto) and the voice you chose for Listen.
• Which roadmap tracks are open.
• The name you type on a completion card.
• The goal you choose in "What is your goal?".
• When you sign in, Firebase also keeps your sign-in session in your browser's own storage.
• A small flag that says you signed in on this device, and the version of the site files you have.
• The id of the account that the progress on this device belongs to. It is a code from sign-in, not your name or email.

What happens when you sign in?

Sign-in uses your Google account, through Firebase Authentication. The site shows your name, your email and your photo in the account menu.

The site also saves your name, your email, the date you joined and the date of your last visit in your record. It does not save your photo.

While you are signed in, your progress is also saved in Firestore, a database from Google. It is stored under your own account, so it works on your other devices. Each person can write only their own record. See "Who can see my progress?" below.

These items are synced: finished lessons, quiz scores, streak days, reading position, and coins and badges.

These items stay only on your device: theme, Listen voice, open roadmap tracks, your goal, and the name on your completion card.

When you sign out, the site saves your latest progress first. Then it removes your progress, your goal and your card name from this device, so the next person who uses this computer does not see them. Your theme and Listen voice stay. If the site cannot save (for example you are offline), it keeps your progress on this device until you sign in again. If a different Google account signs in on this device first, the site removes your progress before it saves anything. Your progress never goes into another person's account.

Who can see my progress?

Only you can read and write your own record. The site owner can also read all records. This shows how many people use the site and how they progress.

The owner cannot change your record from the site.

What happens when you send a request?

You can report a problem or suggest something on the Suggest or report page. You must be signed in. This helps stop spam.

The text you write, your name and your email are saved in the database (Firestore). About once an hour, a copy is added as an issue in the site's private GitHub repository. This lets the owner track your request and answer it.

The "Me too" button on an existing request saves a vote. The vote has your name and your email.

You can send at most 5 requests or votes in one day. The owner can read all requests and votes. Other learners cannot read yours. You can see your own requests on the same page.

Please do not write passwords or other private details in a request.

Why does the site save files on my device?

The site saves its own pages, scripts and fonts on your device using a service worker. This makes the site load faster and lets you read lessons offline. These files contain no personal data.

Which other services does the site talk to?

• Firebase Hosting (Google). It sends you the site files, like any website host.
• Firebase Authentication and Firestore (Google). Used only when you sign in. The Firebase code is loaded from Google's servers (gstatic.com).
• GitHub. A job on GitHub's servers copies your requests from the database into the private repository. Your browser does not talk to GitHub.
• Pyodide, from the jsDelivr network. Python code cells run in your browser. The first time you press Run, Python and its packages are downloaded from cdn.jsdelivr.net. Your code runs on your device and is not sent anywhere.

Each of these services can see basic request details, such as your IP address, as any website can. The Listen button uses the speech voices that are built into your browser.

How can I delete my data?

To remove your progress from a device, sign out. The site saves it in your account first, then removes it from the device. If the site cannot save (for example you are offline), it keeps your progress on the device. Then you can clear the site data for this website in your browser settings. Signing out does not delete the record in your account.

The site has no button to delete your synced record or your requests. To ask for them to be deleted, contact the creator through the link below.

Who do I ask if I have a question?

Visit the creator's page: shreyashp47.github.io.