Privacy Policy

1. Information stored on your device

The following is saved only on your device:

• your level and game settings (music, sound and sum helper)
• your hearts, power-ups, the Linky outfits you own and wear, and your badges
• your statistics, such as levels solved and first-try wins
• your daily challenge history (which days you solved it and with how many hearts), used for your streak

This data never leaves your phone. You can erase it with Settings → Reset progress, and it is deleted if you delete the app.

2. Leaderboard

To place you on the daily leaderboard, the app creates an anonymous account the first time you go online. No email, password or real name is involved. The following is stored on our server:

• a random player ID
• your nickname, which is generated by the app (for example "Brave Otter") and can only be chosen from a fixed list
• your points, the leaderboard pool you are placed in, and when you submitted points, for each day you play
• which levels you have solved (level number only), so that each player is only counted once in the level statistics
• for each daily challenge you solve: your time and how many hearts you had left, so the app can show how you did compared with other players that day (for example "faster than 72% of players")

Other players can see your nickname and your points for the day. They cannot see your times or anything else about you; they only see overall figures such as the average time.

Why: to run the leaderboard you ask to take part in, to prevent cheating (for example by limiting how often points can be submitted), and to show puzzle statistics.

Where: the data is stored with Supabase, on servers in the EU (Ireland).

How long: until you delete it. You can delete everything at any time in the app under Settings → Delete my online data. This removes your nickname, your points, your list of solved levels, your daily challenge times and the anonymous account from the server immediately.

3. Puzzle statistics

When you solve a level, the app sends the level number and how many tries you needed. This is added to a shared count for that level (how many players solved it, how many on the first try, and the total number of tries). These totals contain no player ID and cannot be traced back to you. The app uses them to show facts such as "62% of players solved this on the first try".

Because these totals are anonymous, they are not removed when you delete your online data, but nothing in them identifies you.

4. Advertising

The app is free and shows ads from Google AdMob: a short ad between levels, and optional ads you can choose to watch to get a power-up (Hint, Peek or Shield) or an extra life.

Google may collect information such as your device's advertising identifier (IDFA), IP address, device type and how you interact with ads, in order to show ads, measure them and prevent fraud.

• In Norway, the EU, the EEA and the UK, the app asks for your consent before personalised ads are shown. If you do not consent, you will see non-personalised ads.
• On iPhone, Apple asks whether the app may track you. If you choose "Ask App Not to Track", the advertising identifier is not shared, and ads are not personalised based on your activity in other apps.

You can change these choices later in your iPhone settings (Settings → Privacy & Security → Tracking). Read more in Google's privacy policy and how Google uses information from apps that use its services.

5. What the app does not do

• It does not ask for your name, email, phone number or location.
• It does not access your contacts, photos, camera or microphone.
• It does not sell your personal data.
• It does not have in-app purchases or chat. Hearts and Linky outfits are earned by playing and cannot be bought with money.

6. Children

Chains is a general puzzle game and is not directed at children under 13. We do not knowingly collect personal data from children under 13. If you believe a child has used the leaderboard, use Settings → Delete my online data, or contact us and we will delete it.

7. Your rights

Under the GDPR you have the right to access, correct and delete your personal data, to object to its use, and to withdraw consent. The fastest way to delete your online data is Settings → Delete my online data in the app, and Settings → Reset progress erases what is stored on your device. For anything else, email alfredtoget@gmail.com.

If you are unhappy with how your data is handled, you can complain to the Norwegian Data Protection Authority, Datatilsynet, or the data protection authority where you live.

8. Changes

If this policy changes, the new version will be published on this page with a new date.