Nova Cubes1. Who operates Nova Cubes
Nova Cubes: Number Merge is operated by LIGSY LLC, Battle Ground, Washington, United States. Contact us at info@ligsyus.com. This policy covers Nova Cubes, its account service, leaderboard and product pages; other LIGSY apps have their own policies.
2. Offline play and your device
You can play without creating an account. The current board is held for the current app session. Your chosen language, sound setting, age group and statistics of your best result are retained on your device between launches. An unfinished game is not uploaded as a saved game or restored after closing the app. The app does not request contacts, photos, microphone, camera, precise location or an advertising identifier. A local advertising-progress record stores elapsed foreground time and whether an ad break was interrupted; it contains no game board or account credentials. Your age-group choice controls access to adult account features without collecting a date of birth. If an administrator grants ad-free access to your account, the device retains a separate access token across app updates. The service stores its hash and the linked account identifier. The app checks that access over HTTPS and retains previously verified access during a temporary network outage. Uninstalling the app removes the device token; deleting the linked account revokes its administrator-granted access.
3. Optional accounts
A Nova Cubes account uses a nickname you enter yourself, an email address, a password hash with an individual salt and hashed session and recovery tokens. Your email is used to sign in and recover a forgotten password; it is not shown in the leaderboard and is not used for marketing. Passwords and recovery codes are not stored as readable text in the account database. We do not ask for a real name, phone number, date of birth or profile photograph. Do not put contact information into your public nickname. On Android, the sign-in token and pending result-verification data are encrypted with a device-held key so the app can keep you signed in and retry after an interruption. Passwords are not kept on the device. Signing out removes the saved session and its pending queue. Adults own and manage accounts; children can play as guests, and a parent can manage an account through the adults section.
4. Google Play Games and Apple Game Center
If you choose a platform sign-in, Google or Apple authenticates you under its own terms and privacy policy. Our service uses the game-specific player identifier and the authentication proof needed to link your Nova Cubes account. We do not request your Google or Apple password, email, contacts, friends list, profile photograph or other files. Your public Nova Cubes nickname is separate from your real name. Deleting Nova Cubes does not delete your Google or Apple account.
5. Automatic records and public information
While signed in, your best result is submitted automatically, including an unfinished game. The app normally synchronizes about every ten minutes while open and also on restart of a game, opening the ranking, or moving the app to the background when possible. A pending sequence is kept locally for retry after a network outage or unexpected close; the board itself is not resumed. The server registers a game identifier and seed and checks your sequence of moves. It derives scores and largest cubes instead of trusting device-supplied scores. The public top 100 can be viewed without an account and shows nicknames, best scores, largest cubes and positions. Emails, passwords, recovery codes, session tokens, IP addresses and internal account identifiers are not public. Verified records can be accessed after signing in on another device. An offline result becomes public only after successful verification.
6. Security and service providers
The account service uses HTTPS and runs on OVHcloud infrastructure. It keeps IP-based request limits temporarily in memory. We do not sell account data or add a separate third-party analytics service. Google AdMob in the app and Google Play or Apple services process data as described below and under their own policies.
7. Advertising and your choices
The free game uses Google AdMob. Depending on settings and applicable consent, the SDK processes network and app information, including IP-derived general location, ad interactions, performance diagnostics and technical app identifiers, to deliver ads, measure delivery and prevent fraud. We do not request an advertising ID or personalized ads. Consent choices are presented where required. Google explains its processing at https://policies.google.com/privacy.
8. Purchases
Google Play or Apple handles the payment for permanent ad removal. We do not receive your card or bank details. The app and verification service process the product identifier, purchase verification data and entitlement status to deliver, restore and protect the purchase. Account deletion and store purchase history are separate; contact the store about payments and refunds.
9. How long data remains
Your account and best ranked record remain until you delete the account. Server sessions expire after 30 days without authenticated use. Ranked-game start metadata expires after 24 hours and is cleaned up within seven days. Move lists are processed for verification and are not retained as a gameplay history. Request-limit data is temporary. Private database backups expire within seven days. Technical deletion markers without a nickname prevent a deleted account from returning after a backup restore. Nickname reports contain a reporting account, a reported account, a fixed reason and a timestamp; they expire within 30 days. Locally hidden nicknames remain only for the current app launch.
10. Access, recovery and deletion
To recover a password, enter the account email in the game. If it matches an account, we send a one-use six-digit code and the account nickname to that address. Codes expire after ten minutes and accept no more than five attempts. A successful reset replaces the password and revokes existing sign-in sessions. Recovery requests do not disclose whether an email is registered. You can permanently delete your Nova Cubes account, email, sessions, recovery challenges, ranked records and related metadata in the app or on the linked deletion page. Private backups expire within seven days. Other LIGSY apps and platform accounts are unaffected. Do not email us your password or authentication codes.
11. Children and parents
Nova Cubes is available to children and adults. Children can play without an account. Accounts, public nicknames and ranked submissions are managed by an adult through the parents section. We do not provide children with independent account creation or platform sign-in. The game has no chat, direct messages or photo uploads. Ads use age-appropriate content and non-personalized settings. Contact info@ligsyus.com about a child's information; do not email a child's credentials.
12. Your privacy rights
Depending on where you live, you may have rights to access, correct or delete personal data, restrict or object to certain processing, obtain a copy, or contact the relevant data-protection authority. You may also contact us about privacy questions or a child's information. We verify requests proportionately and do not ask you to email credentials. This policy does not remove rights given by applicable law.
13. International processing and updates
The operator is in the United States, and service providers may process data outside your country of residence. We apply access restrictions and the safeguards required for the processing concerned. We update the date of this policy when its content changes and provide additional notice where required by law. Updated terms do not create consent to unrelated optional processing.
14. Contact
LIGSY LLC · Battle Ground, Washington, United States. Email: info@ligsyus.com. Effective October 25, 2026.