Privacy Policy — Treasure Hunt

Last updated: 1 September 2026

Treasure Hunt is an offline Bluetooth game, published by Essential AI Solutions LTD. It has no

servers and no accounts. The game itself does not use the internet at all. One part of the app does

— the advertisement between rounds — and this policy describes exactly what that involves, because

a policy that said "we collect nothing" would now be hiding it.

The short version

We do not collect anything. We have no server, so there is nowhere for your data to go to us.

Google does collect something, in one place and for one purpose: showing you an advertisement.

Because this is a game made for families, those advertisements are configured as **child-directed

and non-personalised** — no interest-based targeting, no remarketing, and no advertising profile

built from your play.

If you buy the ad-free upgrade, Google's advertising system is never started at all. Not

suppressed after loading — never initialised, and no advertising request is ever made from your

phone.

Everything the game itself knows — your profile, your settings, your scores, your calibration —

stays on your device and is never sent anywhere by us.

What the app stores, and where

All of this is on your own device and none of it is visible to us:

WhatWhy it exists
Your profile — the display name, colour and avatar you chooseSo other players in the same game see who you are
Your last-used game settingsSo you do not re-enter them every round
Signal calibrationNumbers describing how one specific pair of phones sees each other, so the "hot / cold" detector is accurate in your home
A count of rounds you have finishedSo the first advertisement does not appear before you have played a few games
Whether you bought the ad-free upgradeSo the upgrade keeps working when your phone is offline

There is no account and no identifier tied to you. The app generates a random id for your install,

which exists only so phones in the same room can tell each other apart during a game.

What leaves your device

Four things, and only these.

1. To other players' phones, over Bluetooth, in the same room. When you join a game, your

display name, your colour and your avatar choice are sent directly to the other phones playing,

so they can show you in the lobby. This travels device-to-device over Bluetooth only. It does not

pass through any server, is not stored by anyone, and reaches only phones within Bluetooth range

that are in your game.

Your name is never broadcast openly. Phones looking for nearby games see only a random

four-character room code and a player count — never a name. This matters because the name field is

one that families type a child's name into.

The app never transmits your location. BLUETOOTH_SCAN is declared with Android's

neverForLocation flag, which is what makes that statement literally true rather than a promise.

On Android 8 to 11, Android itself requires the Location *permission* before it will return any

Bluetooth scan results at all; the app requests it for that reason alone and never reads your

position.

2. To Google, when an advertisement is requested. This is the one part of the app that uses the

internet. It happens between rounds, not during them, and only if you have not bought the ad-free

upgrade.

Requesting an advertisement sends Google your device's IP address, information about your device

and this app — such as the model, Android version, app version, language and screen size — and

diagnostic information about whether the advertisement loaded and was shown. Your IP address tells

Google roughly where you are, usually to about the level of a town or city. This is inherent to

making any internet request and is not something the app chooses to send.

What is not sent: your name, your avatar, your scores, your calibration, anything about who you

played with, and your device's advertising identifier — the app does not request the Android

advertising ID permission that Google's advertising system would otherwise use to build a profile.

Google's own privacy policy covers what it does with this: https://policies.google.com/privacy

3. To Google Play, if you buy the ad-free upgrade. The purchase is handled entirely by Google

Play. We never see your name, your card, or your address; we are told only that an anonymous

purchase of this product succeeded. Google Play's own terms and privacy policy govern the payment.

4. To your own Google account, if you have Android Backup switched on. Android may include your

profile and game settings in the automatic backup of your device to your own Google Drive. This is

a standard Android feature, controlled by you in your device settings, and the data goes to your

account — never to us. Signal calibration, your install's random id, your round count and your

purchase state are all deliberately excluded from backup.

Advertising, and how to switch it off

A short advertisement appears between some rounds. It can always be closed after five seconds, it

never appears during a round, and it never appears before you have finished several games.

The advertisements come from Google AdMob, which is a Google-certified advertising provider for

apps aimed at children. The app configures every request as:

advertising and remarketing;

choose what you see;

In the European Economic Area and the United Kingdom you will be asked, before any advertisement is

requested, whether you agree to what advertising needs. If you decline, no advertisement is ever

requested. That choice is handled by Google's User Messaging Platform and you can change it later.

The permanent way to switch advertising off is the ad-free upgrade, a single purchase in

Settings. Once you own it, the advertising system is not merely silenced — it is never started, so

your phone makes no advertising request at all.

Children

The game is designed to be played by families, including young children.

We collect nothing from anyone, of any age, and there is no way for a child to give anything away

to us: no chat, no user-generated content beyond the display name you choose, and no way to contact

anyone outside Bluetooth range — roughly the size of a house. The only data that leaves the device

is what an advertising request needs, described above, and buying the upgrade stops even that.

It does contain advertising, and one in-app purchase that removes it. The advertising is configured

child-directed and non-personalised as described above, which is what Google Play's Families policy

requires. The purchase goes through Google Play, where a device set up for a child requires a

parent's approval before any payment completes.

Third parties

Three, all of them Google, and all of them named above:

WhoWhat forWhen it runs
Google Mobile Ads (AdMob)Fetching and showing the advertisement between roundsOnly if you have not bought the ad-free upgrade
Google User Messaging PlatformAsking for advertising consent where the law requires itOnly in the EEA and the UK
Google Play BillingSelling and restoring the ad-free upgradeOnly when you open Settings or make a purchase

There is no analytics library, no crash reporter, and no social or authentication SDK.

Retention and deletion

Everything the app stores is on your device, so you control all of it:

backup settings.

uninstalling and reappears when you reinstall and sign in.

We hold no copy of any of it, so there is nothing for us to retain and nothing for us to delete on

your behalf. Data held by Google in connection with advertising is covered by Google's own policy,

linked above.

Security

The game's own data never leaves your device, so it cannot be intercepted in transit to a server —

there is no server and no such transit. The device-to-device Bluetooth exchange described above is

limited to phones in the same game within radio range, and carries only what is listed there.

Advertising requests and purchases travel over Google's own encrypted connections.

Changes

If this policy changes, the date at the top changes with it.

Contact

Questions about this policy, or about anything the app does with your data, go to:

support@essentialai.uk

Published by Essential AI Solutions LTD — https://essentialai.uk