This policy explains what information Mind Field (“the game”) collects, how it’s used, and the choices you have. Mind Field is made by A4 Labs LLC (“we”, “us”). It covers the game on the web (including mindfield.a4labs.app) and in our apps for iPhone and Android.

1. Information that stays on your device

When you play without signing in, your farm is saved only on your device, in your browser’s or app’s storage. This includes your farm’s name, your farmer, your progress, your settings and your friends’ farm cards. We can’t see it. You can delete it at any time with “Start a new farm” in the You tab, or by clearing the site’s data in your browser or deleting the app.

If you turn on the daily reminder, your phone sets it up and shows it. We don’t send it from our servers. You can turn it off in the game or in your phone’s settings.

2. Information we collect

If you sign in (this is optional):

• Your email address, used only to sign you in (with a password or a one-time code) and to know which farm is yours.

• If you pick a password, it is stored scrambled, so nobody can read it, not even us.

• A copy of your farm (the same game save described above), so it can open on your other devices.

• Basic account records, such as when your account was made and when you last signed in.

If you add friends (you need to be signed in):

• A friend code made just for you. It’s how a friend asks to add you. Nobody can look you up by your email.

• Your farm card: what a visitor sees from the lane, such as your farm’s name, your farmer, your buildings and animals, your medals, your score, and the profile card you design. It never includes your coins, your email or your game save. Only your friends, and people you have asked to be friends with, can see it, along with when you last played.

• Your friends list, and the friend requests you send and answer.

• Letters, gifts, trades and duels you send to a friend. We hold each one until it reaches your friend’s game, then delete it from our servers.

If you buy a Super Farmer membership in the app:

• Apple (or Google on Android) takes the payment. We never see your card number or billing address.

• The app store tells us which plan you have, when it started, and whether it is still active, so the game can turn on your Super Farmer perks.

• Today, Super Farmer on the website is a free preview, and nothing is charged.

If you send us feedback with the red flag or the “Send feedback” button:

• Your note, the kind of note (a problem, an idea or something you like), and your name if you choose to add one.

• Where you were in the game (for example, the screen, game and level), what kind of device and browser you used, and the version of the game, so we can find and fix problems.

• To stop spam, a scrambled code made from your internet address. We don’t keep the address itself.

We also get a copy of each note by email, so we can read it quickly. On some versions of the game, the red flag opens a text message to us instead. If you send it, we see your phone number, as with any text.

Anonymous play stats. We use PostHog to count how the game is used: which screens are opened, which games are played, at what level, and how they went (for example, passed, and how many rounds were right), plus when the app opens and when someone signs in or sends feedback. Each device gets a random ID so we can tell how many people come back. We never send your name, email, farm name, or anything you type. You can turn this off at any time in the You tab, under Help and privacy.

When you use the website, our host, Vercel, collects basic visit counts with Vercel Web Analytics: pages visited, the kind of device and browser, and the country. It doesn’t use cookies and doesn’t identify you by name.

3. Links, codes and the camera

You can also share your farm, a gift, a trade, a letter or a duel as a link or a QR code. The information it needs is written into the link itself, so anyone who has the link can see what is in it. Only send links to people you know.

If you use Scan a friend’s code, Mind Field uses your camera only while the scanner is open, to read the QR code. The camera picture stays on your phone. It is never saved or sent anywhere.

4. How we use information

• To run the game, save your farm, and let you sign in and play on more than one device.

• To let you add friends and send them mail, gifts, trades and duels.

• To turn on the membership you paid for.

• To read and act on feedback, fix bugs and make the game better.

• To keep the game safe, for example by limiting how many notes, friend requests or sign-in codes can be sent.

We don’t sell or rent your information. We don’t use it for advertising. We don’t use it to train AI models.

5. Who helps us run the game

We use a few service providers. They only use your information to provide their service to us:

• Supabase: sign-in, the cloud copy of your farm, friends and mail, and feedback storage. Servers are in the United States.

• Vercel: hosts the website and provides the visit counts described above.

• PostHog: the anonymous play stats described above. Servers are in the United States.

• Email delivery services: one sends your sign-in codes, and Resend sends feedback notes to our inbox.

• Apple and Google: if you get the game from their app stores, they handle the download and any purchase, and their own privacy policies apply.

We may share information if the law requires it, or to protect the safety of our players or the game. If A4 Labs LLC is ever sold or joins another company, your information would move with the game, and this policy would still protect it.

6. How long we keep it

• Your account, the cloud copy of your farm, your friend code, farm card and friends list: until you delete your account.

• Letters, gifts, trades and duels: until they reach your friend’s game. A duel nobody answers goes away after 14 days.

• Feedback notes: up to 2 years, then deleted.

• Anonymous play stats: up to 2 years.

• Backups may keep a copy for a short time after you delete something.

7. Your choices and rights

• Play without an account. Signing in is never required to play.

• Turn off play stats in the You tab, under Help and privacy.

• Remove a friend at any time. They stop seeing your farm card.

• Delete your account in the game: You tab, then “Save my farm”, then “Delete my account”. This deletes your sign-in, the cloud copy of your farm, your friend code, your farm card, your friends list and any mail waiting for you.

• Cancel a membership in your Apple ID or Google Play settings. Deleting your account does not cancel it by itself.

• Ask us for a copy of your information, to fix it, or to delete it, by emailing support@a4labs.app. We’ll reply within 30 days.

• Depending on where you live (for example California, another US state, the United Kingdom or the European Union), you may have more rights under the law, such as the right to complain to your local privacy office. We honor these rights for everyone.

8. Children

Mind Field is not made for children under 13, and signing in is for people 13 and older. We don’t knowingly collect personal information from children under 13. If you believe a child under 13 has given us information, email us and we will delete it.

9. Keeping it safe

Information sent to and from the game is encrypted (HTTPS). The database only lets each signed-in player reach their own farm, and friends only reach each other’s farm cards and mail. Passwords are stored scrambled, and you can skip passwords entirely by signing in with a one-time code. No system is perfectly secure, but we work to protect your information and fix problems quickly.

10. Where your information is kept

Our servers are in the United States. If you play from another country, your information is sent there. We use it only as this policy says. If you are in the European Union or the United Kingdom, we rely on these reasons under the law: to give you the game you asked for (your account, farm, friends and membership), our fair interest in keeping the game safe and working (feedback and security), and your choice (play stats, which you can turn off).

11. Changes to this policy

If we change this policy, we’ll update the date at the top and tell you in the game’s “What’s new” notes. If a change is big, we’ll ask before using information in a new way.

12. Contact us

A4 Labs LLC. Email support@a4labs.app, or use the red flag in the game.