Privacy Policy

The short version

What is stored on your device

Our games save a small amount of data locally so your progress survives closing the app. This never leaves your device and is not sent to us or to anyone else:

• your progress, such as how many levels you have completed;
• any in-game currency you have earned;
• the puzzle you are part-way through, so you can resume it;
• your settings, such as whether compound symbols are shown.

None of this identifies you. Deleting the app removes all of it — see deleting your data.

Advertising

Our games are free and are paid for by advertising. Ads are served by Google AdMob, which is the only third party that receives any information from our games.

To show ads, the Google Mobile Ads SDK may access your device’s advertising identifier (the IDFA on iOS, the Advertising ID on Android), along with technical information such as your device type, operating system version, and approximate location derived from your IP address. Google uses this to select and measure ads, and to detect fraud.

Google’s own description of how it uses this data is published in the Google Business Data Responsibility and How Google uses information from sites or apps that use our services.

Your choices

• In the European Economic Area, the United Kingdom and Switzerland, we ask for your consent before personalised ads are shown, using Google’s consent management platform. You can change that choice at any time from Settings → Ad privacy choices inside the game.
• On iOS, the system asks whether you allow tracking. If you decline, you still see ads, but they are not personalised.
• On Android, you can reset or delete your Advertising ID in the system settings.
• Declining personalised ads does not remove ads and does not limit the game in any way.

What we do not do

• We do not run analytics or crash-reporting services.
• We do not operate accounts, logins or cloud saves.
• We do not sell or share personal information, and we do not build profiles about you.
• We do not knowingly collect anything from children under 13. Our games are rated for a general audience and request general-audience ad content only.

If any of this changes — if we add analytics, for example — we will update this policy and the disclosures on the App Store and Google Play at the same time.

Your rights

Because we hold nothing about you, there is normally nothing for us to retrieve, correct or delete. Data held on your device is removed by deleting the app.

For the advertising data described above, Google is the controller of that processing, and its own tools and policies apply. If you are in the EEA, the UK, California or another jurisdiction with data protection rights, you may still contact us and we will help where we can, including by directing you to the right Google control.

Changes to this policy

If this policy changes materially, the effective date above will change and the updated version will be published on this page.

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