Mathigo Privacy Policy

Effective date: 2026-10-06

Mathigo is free math fact practice for kids. This policy describes what stays on a device, what an adult can upload, and what a practice link stores.

Who we are

Mathigo (“we”) provides online math fact practice. Students can practice without an account. Google sign-in is for parents and teachers.

Data on this device

A local player is a nickname, a color, and a mark, plus that player’s practice, speed-challenge, and find-the-pattern records. By default this stays in the browser on that device. We do not receive it unless someone later uploads it.

Google accounts

If a parent or teacher signs in with Google, we receive and store:

• The name, email address, and profile image from that Google account.
• Players and records that person chooses to upload, and practice links created while signed in.

Practice links and reports

A practice link stores the skill, difficulty, question count, and timer. When a student finishes, they submit a name or seat number and their answers. The report shows that name, the score, the time, and the missed prompts. Guest links expire after about 3 days. Links created while signed in stay on the account until deleted.

Technical data

Signed-in sessions use a cookie. Creating a guest practice link may record an IP address and a browser fingerprint so we can limit how many links one client can create. Ordinary practice does not use that check.

A Google tag snippet is present in the page, and no measurement ID is set, so analytics is not running. If that changes, this policy will say so.

How we use information

We use the information above to:

• Run practice, speed challenges, find-the-pattern, and stats on the device.
• Sync players and records when an adult uploads them.
• Create practice links and show reports to the person who created the link.
• Keep the service working and limit abuse of guest links.

We do not sell personal information.

Who else receives it

We share information only in these cases:

• With the host that stores account data and practice reports, and with Google when someone signs in.
• When the law requires it, or to investigate abuse of the service.

We do not give this information to advertisers.

How long it stays

• On-device players and records stay until someone clears them on that device.
• Guest practice links and their reports expire after about 3 days.
• Account players, uploaded records, and signed-in practice links stay until deleted from the account, or until we delete them after a request.
• IP addresses and fingerprints used for guest-link limits are kept only as long as needed for that limit.

Children

The practice is for children. A child does not need an account. A nickname and a set of answers can still be a child’s. Uploading that data to an account, or submitting a name on a practice link, is done by a parent, a teacher, or the person using that device.

Your choices

You can:

• Clear a local player’s records, or delete that player, on the device.
• Delete an account player, its cloud records, and signed-in practice links from the account page.
• Email us to ask for access to, or deletion of, the account data we hold.

Contact

Questions about this policy: support@mathigo.org