Cookie and Tracking Notice
Beta version. In effect from 25 September 2026. We will email parents before we make any material change to it.
Plain version
Radlic sets no cookies at all. It stores a small amount of information on your own device so the app can work offline, remember your settings, and keep you signed in. That information stays on the device. We do not use advertising cookies, we run no third-party tracking of any kind, and nobody can follow your child from Radlic to another website or app.
What we store on the device
| Name | Where | What it is for | How long it lasts | Type |
|---|---|---|---|---|
| — | Cookies | We set none. | — | — |
milo-kv-migrated | Local storage | Remembers that your saved data has already been moved to the newer storage format | Until you clear it | Strictly necessary |
milo database, kv store | On-device database | Your child's profile, what they last played and where they are in each topic's practice, work waiting to sync if you go offline, the day a "practise the topic before first" suggestion was last shown, voice and speed preferences, and the chosen language | Until you clear it — except everything kept about a particular child (their profile, where they are in each topic, what they last played, and the day that suggestion was last shown), which is removed from the device when you sign out unless some of that child's work is still waiting to sync | Functional |
milo-shell, milo-static, milo-assets-<version> | Cache storage | The app itself and its images, so lessons work offline and use less data | Until the app updates to a new version | Strictly necessary |
milo-assets-audio | Cache storage | Recorded lesson audio — the same clips for every child, nothing about your child — so lessons work offline and use less data. At most 2,000 clips (about 40 MB); the oldest are removed first | Kept across app updates until removed by the browser, or when you clear this site's data | Strictly necessary |
al-lang | Local storage | The language you chose for the parent dashboard and the consent screens (English or Spanish) (read from the code, 24 Sep 2026) | Until you clear it | Functional |
al-dash-prefs:<account id> | Local storage | Your dashboard choices: reminders snoozed or hidden, kinds of reminder switched off, when you last visited, which guided tours you have seen. Nothing about a child (read from the code) | Until you clear it | Functional |
exercise-done:<child id>:<exercise id> | Local storage | That a child has finished a class exercise, so it shows as done on this device (read from the code) | Until you sign out — kept while that child still has work waiting to sync | Functional |
exercise-results-pending | Local storage | A child's class-exercise answers that could not be sent yet (for example, offline), kept until they are sent (read from the code) | Until they are sent | Strictly necessary |
milo_active_plan_<child id> | Local storage | An older per-child learning-plan record, still written by some screens (read from the code) | Until you sign out — kept while that child still has work waiting to sync | Functional |
al-text-size | Local storage | The text size chosen on this device (Large or Extra large; nothing is kept for Normal) (read from the code, 24 Sep 2026) | Until you clear it | Functional |
milo-pwa-dismissed | Local storage | That you dismissed the "install the app" banner (read from the code) | Until you clear it | Functional |
milo-auth | Local storage | Keeps you signed in | Until sign-out or expiry | Strictly necessary |
milo_active_learner | Session storage | Which child's profile this browser tab is using | Until the tab closes | Strictly necessary |
The last two rows were also seen in a live signed-in child session on 24 September 2026.
If you are not signed in, nothing that names or identifies your child is stored, and nothing is sent to us — but the device does keep a note of the practice. As measured on 24 September 2026, after a full lesson and practice session signed out, the on-device database held two entries for the topic practised: milo-newflow-standing-device-<topic> (how far along that topic's practice the device got: a level number, a count of right answers in a row, and whether it was mastered) and, once the topic was finished, milo-newflow-done-device-<topic>; local storage held milo-kv-migrated, and holds al-text-size only if a bigger text size was chosen on this device. None of these carries a name, an email address or an account, and they stay on the device until you clear it.
What we do not do
- No cookies.
- No advertising or marketing storage.
- No third-party scripts, beacons or tracking pixels — none, anywhere. The security policy the site serves to your browser only permits connections to Radlic itself and to our database provider, so the browser is not able to reach an advertising or analytics company even in principle.
- No device fingerprint, no advertising identifier, no cross-site identifier.
- No session recording.
What we do record, on our own systems
We log a small number of product events — such as a session starting — so we can see which parts of the app are used. These are stored in our own database, they are tied to a child's internal identifier rather than to a name, and they are deleted automatically after 90 days. They are not shared with anyone and they are not used for advertising.
Our database and hosting providers also keep their own request logs, which include the IP address and browser type of every visit. That is described in our Privacy Policy.
Your choices
Everything we store on the device is needed for the app to work or to remember your settings, so there is nothing to switch off — turning it off would stop the app working. You can clear your browser's storage at any time; if you do, you will be signed out and the offline copy of your lessons will be downloaded again next time.
We will not add storage that the app does not need without first asking you, and it will be off unless you switch it on.
Questions
support@radlor.com 1-888-812-9373
Questions about your child's data? Email support@radlor.com or call 1-888-812-9373. You can download or delete everything from the parent dashboard.