Privacy and credits

In short

Most information stays on your device and never reaches us.

Only when playing together over the internet are the typed names and the state of the board sent to a server. The game room is deleted automatically no later than seven hours after the last activity in it.

Nobody is asked for an age, a school, an email address or a phone number.

Playing on one device

Information is kept in the browser's own storage on the device and is never sent anywhere.

What is kept: the names typed in. Results of up to the last 100 games: which exercises were answered correctly and which were not, how long each answer took, and when each answer was given (date and time). The list of exercises the game brings back, and the answer speed for each name. Preferences: music, contrast, text size, spacing and motion. The setup of the last game (level, number of players, names and options). And which doors, tour and tips have already been shown.

For how long: until you delete it (see "How to delete"). Nothing on the device deletes itself.

This information is yours. It does not reach us and we cannot see it.

On the results screen you can save the results to an Excel or CSV file. The file is made on the device and stays with you and is not sent to us. We do not ask to receive the results file.

Playing together over the internet

For several children to share one board, a server has to hold that shared board.

What is sent to the server and kept there: the room code, the level and the settings. The name each child typed in (up to 18 characters). The state of the board: where each dog is, the pellets, the current exercise, the last wrong answer and each player's number of mistakes. A random number for each place at the board, so the server knows whose move it is. It holds nothing about the child. And a marker of who is connected right now: the room code, the place number and the time.

Typing a name is not required, and a nickname is fine. Anyone who leaves it empty appears in the room under a name such as "Player 1" or "Player 2".

Who sees it: the children in the same room see the names, the board and each player's number of mistakes.

What is not sent to the server: the response times and the detailed record of answers. Those stay on the device.

For how long: a room is deleted automatically no later than seven hours after the last activity in it, whether or not the game finished. The marker of who is connected is deleted with the room or before it.

On the device too: after a game together, each child's device also keeps the names of the other children in the room and their number of mistakes, as part of the results. They are deleted like the other results.

Protection against guessing room codes

So that room codes cannot be guessed, the server counts how many requests to create or join a room arrive each minute from the same internet address (IP address).

The internet address is not kept as it is. Instead, a scrambled code calculated from it with a secret key is kept, together with a counter.

That record is deleted automatically within an hour.

As with any website

The site is hosted by Netlify, an American company. The game rooms and the server that runs them are in the United States.

When the site is opened, the browser sends it, as it does to any website, the internet address, the browser type and the preferred language. Netlify may keep these in its logs for a limited time.

What is kept on the server can be accessed by Netlify, which hosts the site, and by the game's developer through the hosting account.

If you choose a language yourself, the site keeps a small file in the browser (a cookie) that remembers it for one year. It holds only "Hebrew" or "English".

Reading aloud

Some instructions have a speaker button. Pressing it asks the browser to read the text aloud.

Only the game's instructions are read aloud. Children's names are not read aloud.

In some browsers, reading aloud is done by an online service of the browser's maker, such as Google or Microsoft, and the text being read is then sent to it.

Nothing is read aloud unless the speaker button is pressed.

What the game never collects

No sign-up, no password, no email address and no phone number.

Nobody is asked for an age, a class, a school or a location.

No adverts, no measurement tools and no external scripts. Even the fonts are loaded from the site itself rather than from Google.

One small request

In a game together, a first name or a nickname is better than a full name. The name is only there so the other players in the room know who is playing.

How to delete

On the device: the results screen has a "Delete all" button. After you confirm, it deletes the results, the practice lists and the answer speeds. Preferences (music, display, the last game's setup, tour and tips) stay.

To delete everything, including preferences and the language cookie: clear the site's data in the browser settings.

On the server: game rooms delete themselves, as described above.

Seeing, correcting and deleting information

The game has no accounts, so we have no way of knowing which information on the server belongs to which child.

What is on the device is under your control: you can see it on the results screen and delete it with the button or in the browser settings.

For a question or request about information on the server, use the email address at the end of this page and include the room code. In most cases the room has already deleted itself by the time the request arrives.

We will reply within 21 days.

Questions and requests

The person responsible for the game and the information in it is Dafna (Daffy) Nudel. Contact, questions and technical support, including privacy questions and requests to delete information: klavhavim@gmail.com

An email sent to us is kept in our mailbox (Gmail, a Google service) until the request has been handled, and no longer than one year.

Credits

Background music: Leonardo Paz (Leohpaz), from the Ocean Music Pack. Used with the creator's permission.

The game was developed by Dafna (Daffy) Nudel.