Star Bot Math Adventures runs in your browser. As your child plays, it asks our server for fresh math problems for the chosen skill. Those requests carry only the skill and the difficulty step, nothing about who is playing. There are no accounts, no sign-ins, no cookies, no third-party analytics, and no advertising.
Everything about your child's practice (the grade picked, answers counted, difficulty steps, medals, trophies, Robo's outfit, and the problems saved for review) is kept in your browser's local storage on your own device. It is never sent to us. Clearing your browser data erases it. The "For grown-ups" page can turn it into a progress code so you can move it to another device yourself; that code is shown on your screen and is not uploaded anywhere.
The site is hosted from our own server. Like every web server, it keeps standard access logs that include the IP address of each request and the page requested. We use these only to keep the site running and look into problems, and they are deleted on a rolling basis.
To see whether the site is being used, the pages send our server a few anonymous counts: which page was opened, whether the screen is phone, tablet, or desktop sized, whether it uses touch, which site linked here, and, at checkpoints, which skill and difficulty step were practiced, how many answers were right, and which facts were missed (for example "7 × 8"). We count each visitor once a day using a one-way scrambled fingerprint of the connection that is never stored and cannot be turned back into an address. The result is a table of daily totals, nothing more. There is no way for us to tell who played or to follow one person across days.
The site does not load anything from third parties. Fonts, images, sounds and code all come from our server.
The words of each math problem are turned into speech once by Microsoft Azure on our server, and the sound file is saved. Your device only ever downloads sound files from starbotmath.geekutils.com. Nothing about you or your device is sent to Microsoft.
If a sound file is not ready yet, the 🔊 button may use a voice built into your device instead. We only use voices that run on the device itself, so the words are not sent anywhere.
If you use the contact form, we receive the name, email address, and message you type, along with the IP address it was sent from. This is delivered to us as an email. We use it only to read and reply to your message, and we keep it in our mailbox for as long as the conversation is useful. We do not add you to any list or share it with anyone.
To keep out spam, our server checks that the domain of your email address can receive mail (an ordinary DNS lookup) and is not a throwaway address. It also remembers a scrambled fingerprint of each address and message for one day, in memory only, to catch repeats and to limit one address to a few messages a day.
The form is meant for grown-ups. If a child has sent us personal information through it, a parent can ask us to delete it using the same form and we will.
Star Bot Math is made for kids, and that is exactly why it collects nothing about them. We do not knowingly collect personal information from anyone under 13.
If you add Star Bot Math to your home screen, your device keeps the app icon and fonts so it opens quickly. The problems come from our server each time, so you need to be online to play. Uninstalling the app or clearing site data removes the stored copy.
Ask us anything about this page through the contact form.
Last updated November 2026.