Whizzed.

Privacy policy for Meridian

Last updated: 11 November 2026

Meridian is a geography quiz app for Android (“Meridian”, “the app”), published by Whizzed. Whizzed is a trading name of DGFIX LTD. This policy explains what information is used when you use Meridian, including when the app is used by a child.

Who is responsible

The organisation responsible for this app and for this policy (the data controller) is:

DGFIX LTD (trading as Whizzed)
Company number: 10646551 (registered in England and Wales)
Registered office: 13 Chestnut Road, Dartford, Kent, DA1 2LB, United Kingdom
Email: Holusa.d@seznam.cz

If you have a question, want a copy of the information we hold, or want us to delete what we can, please email that address.

A short summary

  • Meridian is a quiz you can play without creating an account.
  • Your progress (scores, streaks, atlas, settings and a date-of-birth group used only to show the right kind of ads) is stored on your device. We do not run a Meridian login or a Meridian server that keeps your game saves.
  • If ads are on, Google’s AdMob service receives some technical information from the device so that an advert can be shown. Those ads are not personalised, and we configure the app so that it does not use the Android Advertising ID.
  • You (or a parent) can pay £0.99 once, through Google Play, to remove ads. Google processes that payment.
  • Children can use the app. We take extra care with ads and with purchases.

Information stored on your device

Meridian keeps the following on the device only (in the app’s own storage, for example the save named meridian.v1):

  • Game progress: countries you have learned, streaks, best Beat the Clock run, sound and intro settings, and a round in progress if you leave mid-quiz.
  • A date of birth you enter on the age screen, and the age group we derive from it (so we know whether to treat ads and purchases as being for a child). We do not send this date to our own servers, and we do not use it for marketing.
  • A flag that ads have been removed, once a Remove ads purchase has been restored from Google Play.

This on-device information does not go to DGFIX LTD’s own computers or servers. If you uninstall Meridian or clear the app’s data in Android settings, this local information is deleted. You can also ask us for help with that using the email above.

The date-of-birth screen asks you to type a month, day and year. We do this so that ads and any paid “Remove ads” purchase are handled in a way that is suitable for children. We do not use this screen to stop anyone playing the quiz.

Ads (Google AdMob)

If ads have not been removed, Meridian uses Google AdMob to show:

  • a labelled banner on the home screen and on the results screen, and
  • sometimes a full-screen advert after you finish a round (not while you are in the middle of a question, and not when you first open the app).

There may also be an optional “watch an advert” button, for example for an extra hint. That is never forced.

We ask AdMob to show non-personalised, family-suitable (G-rated) ads. For a child, or before anyone has entered a date of birth, we also ask Google to treat the request as child-directed. That means interest-based advertising and remarketing are switched off, and the Android Advertising ID is not used.

Even then, Google’s advertising software typically receives some technical information so that an ad can be delivered and so that fraud and abuse can be limited. That can include:

  • the device’s IP address (which can suggest a rough location, such as a city or region, not a precise GPS position),
  • basic information about how the app is used (for example that the app was opened, or that an ad was shown or tapped),
  • technical diagnostic information, and
  • a device or app identifier such as the app set ID.

We configure Meridian so that it does not use or send the Android Advertising ID.

Google acts as a separate organisation (a third party) when it provides these advertising services. Google’s own advertising privacy information is at: https://policies.google.com/privacy and https://support.google.com/admob/answer/6128543

If you (or a parent) buy Remove ads, Meridian stops asking for ads. After that, the AdMob software is not started, and these advertising requests should stop.

People in the UK, the European Economic Area and Switzerland

For an adult user in these regions, Meridian may show a consent message (Google’s User Messaging Platform) before ads are requested, where that is required. You can change that choice later from Meridian’s settings when a “privacy options” entry is shown.

We do not show that consent message to a child, or to someone who has not yet entered a date of birth. In those cases we still only request child-suitable, non-personalised ads, or we show no ads.

Purchases (Remove ads)

Remove ads is a one-time purchase of £0.99, paid through Google Play. Google collects and processes the payment details. Meridian does not see your card or Play account password. Meridian only learns from Google Play whether the purchase is owned, so it can hide ads and so you can restore the purchase after reinstalling.

If the person using the app is a child, or we do not yet know their age, Meridian asks for a parent to confirm before the paid purchase starts. That confirmation happens on the device.

Google’s payments and privacy terms also apply to the purchase. See Google Play’s documentation and privacy policy.

Children

Meridian is designed so that children, including children under 13, can use it.

We do not knowingly use a child’s information to build an advertising profile, to send marketing, or to allow a child to pay without a parent step. We do not ask a child for a name, email address or photos.

If you are a parent or guardian and you think we have information we should not have, email Holusa.d@seznam.cz and we will look into it and delete what we can.

Parents can also:

  • use Android settings to clear the app’s data or uninstall it,
  • use the in-app Restore and Remove ads controls (Remove ads is a paid, parent-confirmed purchase),
  • use device advertising and Google account settings for ads shown by Google on the device.

Who we share information with

We do not sell your information.

We share information only as follows:

  • Google, when ads are shown (AdMob, and the consent message where it applies), and when you buy or restore Remove ads (Google Play).
  • The law, if we are required to.

We do not have our own advertising partners or analytics company besides what is described here.

How long information is kept

  • Information on the device stays until you clear the app’s data, uninstall the app, or (for game progress) use any in-app delete control we provide.
  • Information that Google collects for ads or payments is kept by Google under its own policies. We do not control those periods.
  • If you email us, we keep the email long enough to answer you and to deal with any follow-up, then we delete it when we no longer need it.

Your rights

If UK or EU data protection law applies to you, you may have the right to ask for a copy of personal information, to ask for it to be corrected or deleted, to object or restrict certain uses, and to complain to a regulator.

For the United Kingdom, that regulator is the Information Commissioner’s Office (ICO): https://ico.org.uk
For the EU, you can contact your local data protection authority.

To make a request about Meridian, email Holusa.d@seznam.cz. Because most game information lives only on the device, the most effective way to delete a save is often to clear the app’s data or uninstall it. We will still help if you write to us.

Security

Information that leaves the device towards Google is sent using encrypted connections (HTTPS / TLS), according to Google’s documentation. No method of transmission is perfect, and we cannot guarantee complete security.

International transfers

Google may process advertising and payments information outside the United Kingdom or the EEA. Google is responsible for the safeguards it uses for those transfers, as described in its privacy policy.

Changes

If we change this policy in a meaningful way, we will update the “Last updated” date and, where we can, the copy in the app. The current version will always be the one on this page.

How to contact us

DGFIX LTD (trading as Whizzed)
13 Chestnut Road, Dartford, Kent, DA1 2LB, United Kingdom
Email: Holusa.d@seznam.cz