Privacy Policy

Effective date: [Effective date] · Last updated: 29 October 2026

The short version

There's no account. Your games, scores and settings stay on your device.
Our ad, analytics and crash-reporting partners collect device and usage data.
Ads are personalized only if you allow it, and you can change that any time in the game.
We don't sell your personal data, and buying Remove Ads stops all ads.

1. Who we are

Lambda Interactive is the name under which Muhammad Azri Fatihah Susanto, an independent developer based in Indonesia, publishes the Bitmerge game for iOS, iPadOS and Android (package name com.lambdainteractive.bitmerge) and runs this website. He is the controller of the personal data described here. Contact: muhammad.azri.f.s@gmail.com.

2. What data is collected, by whom, and why

Data	Who handles it	Why
Saved games, scores, stats, settings	Only your device (and your own device backup)	To save and resume your games
Daily challenge tries used	Your device; on iOS also your iCloud account (Apple)	To keep the daily tries limit across reinstalls
Whether you own Remove Ads	Apple App Store or Google Play	To unlock what you paid for. We never see payment details
Advertising ID (IDFA on iOS only if you allow tracking; Android advertising ID), IP address, approximate location from IP, device and OS info, ad views and taps	Google AdMob	To show ads, measure them and prevent ad fraud. Personalized only with your consent
Game events (games started and finished, scores, revives, screens opened), app instance ID, device and OS info	Google Firebase Analytics	To understand how the game is played and improve it
Crash reports and device state at the time of a crash	Google Firebase Crashlytics	To find and fix bugs
Your player nickname, scores and achievements	Apple Game Center or Google's game service	Leaderboards and achievements, which other players can see
Your email address and what you write to us	Us	To answer support and privacy requests

We don't ask for your name, contacts, photos or precise location. This website doesn't use cookies or tracking.

3. Legal bases

Where the GDPR, the UK GDPR or Indonesia's Personal Data Protection Law (Law No. 27 of 2022) apply, we rely on:

Consent for personalized ads and, on iOS, app tracking. You can withdraw it at any time.
Contract to deliver Remove Ads after you buy it.
Legitimate interests for non-personalized ads, analytics, crash reports and fraud prevention, which keep the game free and working. You can object (see section 7).

4. Ads and your choices

In the EEA, the UK and Switzerland , the game asks for your consent through a standard consent form (IAB Transparency & Consent Framework) before personalized ads, and passes your choice to Google AdMob. Change it any time in Settings › Privacy settings.
On iOS , the game asks for permission to track. If you choose "Ask App Not to Track", the IDFA isn't shared. Change it in iOS Settings › Privacy & Security › Tracking.
On Android , you can reset or delete your advertising ID in Android Settings › Privacy › Ads (the wording varies by device).
If you say no, you still get ads, but they aren't based on your activity in other apps. The game is never locked.
Buying Remove Ads stops all ads, and the game no longer asks for ad consent or tracking.

We only work with the service providers in the table above, under their own privacy policies:

Google (AdMob, Firebase Analytics and Crashlytics): policies.google.com/privacy and how Google uses data from partner apps
Apple (App Store, Game Center, iCloud): apple.com/legal/privacy

We don't sell personal data for money. Under California law (CCPA/CPRA), letting ad partners use device data for personalized ads may count as "sharing". California residents can opt out with the choices in section 4. We may also disclose data if the law requires it.

6. How long data is kept

Game data on your device: until you reset your stats or delete the game.
Firebase Analytics: [14] months, then deleted automatically.
Crash reports: about 90 days.
Google AdMob: under Google's own retention policies (see section 5).
Support emails: until your request is resolved, then up to [12] months.

7. Your rights and deleting your data

Depending on where you live, you can ask to access, correct, delete or get a copy of your personal data, object to or limit how it's used, and withdraw consent. You also have the right to complain to your data protection authority.

Delete game data: reset stats in the game, or uninstall it. That removes everything stored on your device.
Delete analytics data: email muhammad.azri.f.s@gmail.com. Because there's no account, we may ask you for details from the game to find your data.
Ad data: use the choices in section 4, or contact Google directly.

We reply within 30 days, or sooner where the law requires, and we won't treat you differently for using your rights.

8. Children

Bitmerge is not directed at children under 13, or under the minimum age in your country. We don't knowingly collect their personal data. If you believe a child has given us data, contact us and we'll delete it. Ads in the game are limited to content suitable for the game's age rating.

9. International transfers and security

Our partners may process data in countries outside your own, including the United States and countries in Asia. Where the law requires it, these transfers are protected with safeguards such as the EU Standard Contractual Clauses. Data is sent over encrypted connections, and we limit what we collect to what the game needs.

10. Changes to this policy

We'll update the "Last updated" date when this policy changes, and tell you in the game about important changes.

11. Contact

Lambda Interactive (Muhammad Azri Fatihah Susanto) Indonesia Privacy and support: muhammad.azri.f.s@gmail.com