Privacy Policy

Effective Date: 12th Oct 2026

Last Updated: 12th Oct 2026

YOUR PRIVACY IS IMPORTANT TO US

CLUEBELL STUDIO (“we”, “our”, “us”) develops and publishes Boom Bloom (the “Game”). This Privacy Policy explains what happens to information when you play it.

In short: Boom Bloom has no accounts and no servers of ours. We do not ask for your name, email address or phone number, and no server of ours receives anything from the Game. Your progress is a file on your own device. The Game is free because it shows adverts, supplied by Google AdMob, and Google receives information about your device, including its advertising identifier. Google Analytics for Firebase shows us how the Game is played, as described below. Purchases are handled by Google Play. In the European Economic Area, the United Kingdom and Switzerland the Game asks for your consent before adverts are personalised, and in the United States you can opt out of the “sale” or “sharing” of your information, from the Game’s Settings or your device, as the United States section explains.

By downloading or playing the Game, you agree to this Privacy Policy. If you do not agree, please do not use the Game.

Information Stored On Your Device

The Game keeps your progress and settings in a save file on your device. That includes:

  • Your progress: the shows (the Game’s levels) you have cleared, the stars and best results you earned on each, and the blooms they left in your sky.
  • Your coin balance, the burst kits you own and the one you are using, and the purchases you have unlocked, such as Remove Ads.
  • Your daily reward, Tonight’s Show and mission progress, and how far you are through the tutorial.
  • Your settings, such as sound, music, Calm Mode, reduced motion and large shapes, and your privacy choices.
  • A randomly generated installation identifier. It is not your device’s advertising identifier, and the Game does not send it anywhere.

The file is signed, so the Game can tell if it has been altered. The Game never sends the file to us — there is no server of ours to send it to. It stays on the device until you uninstall the Game or clear its data, and we hold no copy that we could restore. Google’s consent form also keeps your answers on your device. What the Game’s advertising partner receives is described in the next section.

One thing is outside the Game’s control. If Android’s own backup is switched on for your Google account, Android may keep a copy of the Game’s data in that account and put it back when you reinstall. That copy is kept by Google under your account, not by us, and you manage it in your device’s backup settings.

Information Collected For Advertising

The Game shows adverts through Google AdMob, Google’s advertising service, using Google’s advertising software inside the Game. Some adverts appear between shows (the Game’s levels), and a banner appears at the bottom of the screen on the menus and during play, in a strip of its own below the playing area; others are optional and reward you for choosing to watch them. To choose, deliver and measure those adverts, and to detect advertising fraud, Google’s software collects and sends to Google:

  • Your device’s advertising identifier (the Google Advertising ID); its app set ID, an identifier Google’s software uses for measurement and to detect fraud; and, where applicable, identifiers related to the accounts you are signed in to on the device, such as your Google account.
  • Your IP address, from which an approximate location can be worked out, and your device’s language and region settings.
  • Information about your device and about how the Game and Google’s software perform on it, such as its make and model, operating system version, screen and network connection, launch times, hangs and energy use.
  • When the Game is opened, which adverts you were shown and how you interacted with them — for example whether you watched a rewarded advert to the end, or tapped one.
  • Crash reports: Google’s software can send Google technical details when the Game crashes.

Google and its partners use cookies, device identifiers and similar technologies to serve and measure adverts. How Google uses information from apps that use its services is described at policies.google.com/technologies/partner-sites, and Google’s own privacy policy is at policies.google.com/privacy.

If you are in the European Economic Area, the United Kingdom or Switzerland, or anywhere else Google’s software applies the same consent rules, the Game uses Google’s consent form — Google’s User Messaging Platform — to ask for your consent before adverts are personalised. You can change your answer at any time with the privacy choices option in the Game’s Settings. If you decline, you will still see adverts, but they will not be personalised.

If you are in the United States, see “Do Not Sell Or Share My Personal Information” below.

Information Collected For Analytics

The Game includes Google Analytics for Firebase, a Google service that shows us, as reports, how the Game is played, so that we can find problems and improve it. It is switched on only in versions of the Game that we publish with a Firebase configuration. In a version published without one it does not start, and sends nothing. When it is on, Google receives:

  • Events describing play, such as: shows started, cleared or failed; tutorial steps; coins earned and spent; burst kits unlocked; daily rewards and missions; adverts offered, shown and rewarded; whether the rating prompt was shown; and how many sessions you play, how long they last and how long the Game took to start.
  • Purchases you make: which product, its price and currency, and the store’s transaction identifier.
  • The Game’s random installation identifier, which the Game sets as its analytics user ID, and the identifiers Firebase itself uses — an app-instance ID and, when your consent choices allow it, your advertising identifier.
  • Your device model, operating system, and language and country settings, and an approximate location that Google works out from your IP address.
  • Technical error reports: the error messages the Game’s own code writes, and the type and place of any unexpected error inside the Game. Never anything you type — the Game has nowhere to type.

Where the law requires consent, the Game sends Google nothing until you have given it through the consent tool described above, and you can withdraw it at any time from PRIVACY CHOICES in the Game’s Settings. Elsewhere it runs from the Game’s first launch. Google explains how Firebase handles this information at firebase.google.com/support/privacy.

Purchases

Optional purchases are processed entirely by Google Play, through Google Play Billing. Your payment details are given to Google, never to us. The Game receives confirmation that a purchase succeeded, and records what you bought in its save file on your device so that it can unlock it.

No record of your purchases is sent to us: the Game has no server to send it to. Each time it starts, the Game asks Google Play which one-off purchases your Google account owns, so that they stay unlocked.

Rating The Game

Once, after you have finished the Game’s first city, the Game may ask Google Play to show its own rating prompt. The prompt is Google Play’s: if you rate or review the Game there, your rating goes to Google Play under your Google account, as Google Play’s own terms describe. The Game is not told whether you rated it, or what you wrote.

When You Write To Us

If you email us — for example with the support option in the Game’s Settings, which opens your own email app — we receive your email address, your message and anything you attach, and the details the support option adds to the message for you, such as the Game’s version number. You can read and remove them before you send. We use them to reply to you.

What We Do Not Collect
  • We do not ask for your name, email address, postal address or phone number, and the Game does not store them.
  • There is no account and no login.
  • The Game asks for no access to your contacts, photos, microphone, camera or precise location, and sends you no notifications.
  • We do not sell personal information for money. Some US privacy laws count advertising like the Game’s as a “sale” or “sharing” of information; the United States section below explains how to opt out.
How We Share Your Information

We do not sell or rent information about you for money. The Game passes information to these third parties, and to no one else:

  • Google AdMob — to serve and measure adverts, as described above.
  • Google, through Google Analytics for Firebase — to measure how the Game is played, only in versions where it is switched on, as described above.
  • Google, through its User Messaging Platform — to show players in the European Economic Area, the United Kingdom and Switzerland the consent form, and players in US states with a privacy law the opt-out form, and to record their answers.
  • Google Play — to process purchases, through Google Play Billing, and to distribute the Game.
  • Google Play, through its In-App Review API — to show Google Play’s own rating prompt, as described above.

We may also disclose information where we are legally required to, or to establish or defend legal claims.

Legal Bases For Processing (EEA, UK And Switzerland)
  • Consent — for personalised advertising, which we ask for through the consent form described above, and which you may withdraw at any time with the privacy choices option in Settings.
  • Legitimate interests — for non-personalised advertising, for detecting advertising fraud, and for keeping the Game secure and working correctly.
  • Performance of a contract — for delivering purchases you make.
Your Choices And Rights

Depending on where you live, you may have the right to access, correct, delete or receive a copy of personal information about you, to object to or restrict its processing, and to withdraw consent. We hold no account and no personal information about you on any server of ours, so the fastest routes are usually direct:

  • Advertising: reset or delete your advertising identifier, or opt out of ads personalisation, in your device’s settings. In the European Economic Area, the United Kingdom and Switzerland you can also change your consent with the privacy choices option in the Game’s Settings, and in a US state with a privacy law the same option opens Google’s opt-out form.
  • Everything the Game stores: uninstalling the Game, or clearing its data, deletes it from your device (see Android’s own backup, above).
  • Information held by Google: ask Google, or manage it in your Google Account, as Google’s privacy policy linked above describes.

To make a request of us, or to complain, write to info@cluebellstudio.com. You also have the right to complain to your local data protection authority.

Do Not Sell Or Share My Personal Information (United States)

If you live in California or another US state with a comparable privacy law, you have the right to know what personal information is collected, to request its deletion, and to opt out of its “sale” or “sharing” for targeted advertising.

We do not sell your personal information for money. The advertising described above may count as “selling” or “sharing” under some of these laws. You can opt out of it in two ways, and you will still see adverts afterwards:

  • In the Game: in a state whose law gives you this right, the privacy choices option in the Game’s Settings opens Google’s opt-out form for US state privacy laws, where you can opt out. Google’s software applies your choice to the adverts the Game requests from then on. The form keeps your choice on your device, so if you uninstall the Game or clear its data, make it again.
  • On your device: delete or reset your advertising identifier, or opt out of ads personalisation, in your device’s settings (on most Android phones, Settings, then Privacy or Google, then Ads). Adverts can then no longer be linked to that identifier.

Google’s privacy policy, linked above, describes the rights you have with Google directly. The Game has no server, so we cannot change Google’s settings for you from our side, but you can write to us at info@cluebellstudio.com with any request.

Notice For Players In India (Digital Personal Data Protection Act, 2023)

This notice is for players in India. CLUEBELL STUDIO decides how the Game processes personal data. In summary:

  • What is processed: the advertising and device information listed under “Information Collected For Advertising”. The save file itself — your progress, coins, purchases and settings — stays on your device.
  • Why: to show and measure the adverts that keep the Game free, and to detect advertising fraud. We use it for nothing else.
  • Withdrawing consent: you can withdraw at any time — reset or delete your advertising identifier, or opt out of ads personalisation, in your device’s settings; or stop all processing by uninstalling the Game, which also deletes everything it stored on your device. Withdrawing does not affect processing that took place before you withdrew.
  • Your rights: you may ask for a summary of the personal data processed about you and who it has been shared with, ask for it to be corrected or erased, nominate someone to exercise these rights for you if you die or become unable to, and have your grievances addressed. No server of ours holds data about you, so we will tell you what we can and point you to Google for what it holds.
  • Grievances: write to info@cluebellstudio.com. If you are not satisfied with our response, you may complain to the Data Protection Board of India.
Children’s Privacy

Boom Bloom is not directed to children under the age of 13, and its intended audience is 13 and over. Its adverts are requested for a general audience, without the protections Google applies to apps for children, so the Game is not suitable for children under 13, and we do not knowingly collect personal information from them. We hold none on any server of ours; if you believe a child under 13 has been playing, uninstall the Game on their device and ask Google to delete what it holds, through its privacy policy linked above. Contact us at info@cluebellstudio.com and we will help.

Players under 18 should play only with the consent of a parent or guardian, as our Terms and Conditions explain.

Retention

Information stored on your device remains there until you uninstall the Game or clear its data, subject to Android’s own backup described above. Information Google receives is kept under Google’s policies, linked above.

International Transfers

Google operates globally, so information described in this policy may be processed in countries other than your own, including the United States. Google uses its own safeguards for such transfers, described in its privacy policy.

Data Security

The save file on your device is signed, so that tampering can be detected. No server of ours receives data from the Game, and Google’s software sends what is described above over encrypted connections. No method of transmission or storage is completely secure, but the exposure here is small by design: no server of ours holds anything about you to lose.

Changes To This Privacy Policy

We may update this Privacy Policy to reflect changes in the Game’s data practices — for example if we add an advertising network or an analytics service — or in legal requirements. We will update the effective date at the top of this page, and notify you of significant changes in the Game.

Contact Us

If you have any questions or concerns about this Privacy Policy or our data practices, please contact us at:

CLUEBELL STUDIO

Email: info@cluebellstudio.com