Privacy Policy
Last Updated: July 2, 2026
NJJMKJ (hereinafter referred to as "we") places high priority on user privacy and data security, and regards user information protection as a core component of product operation. This Privacy Policy clarifies the full-cycle personal information processing rules for Perfect Color Stack Tower, a mobile application developed and operated by us (hereinafter referred to as "the App"). It elaborates on the collection, storage, usage, transmission and third-party sharing of user data, and specifies all legal rights granted to users under applicable laws and regulations regarding personal data protection.
Important Notice
Please read and fully understand all terms of this Policy before installing, launching and using any services of the App. Your completion of installation, account registration, daily browsing and continuous use of our services confirms that you fully understand and voluntarily consent to our processing of your personal data in accordance with this Policy. If you disagree with any provision herein, please terminate the installation process, uninstall the App and cease using the App and all affiliated services immediately.
1 Data Collection and Device Permission Management
We strictly comply with the compliance principles of legitimacy, necessity and minimum scope. We only apply for device permissions and collect user data to guarantee basic App functions and optimize user experience, and prohibit excessive permission requests and redundant data collection.
1.1 Detailed List of Requested System Permissions
To ensure stable function operation, interactive experience delivery and commercial ad deployment, the App will request the following system permissions. All permissions correspond to practical business scenarios with no invalid or redundant authorizations.
表格
Permission Category
Authorization Purpose
Business Application Scenarios
External Storage Read & Write Permission
Local File & Cache Management
Store images, documents and runtime cache generated by the App; access local files uploaded voluntarily by users to sustain stable operation of file-related features
Device Status Access Permission
Device Identification & Security Risk Control
Collect unique device identifiers for user and device authentication, block unauthorized access risks, and secure end-to-end service stability
System Settings Modification Permission
Personalized Experience Optimization
Adjust device system parameters moderately based on user habits to simplify operations and improve comfort during use
Background Operation & Auto-Startup Permission
Persistent Background Service Operation
Maintain core background services; automatically restore App functions after device reboot without interrupting user experience
Network & Advertising Permission
Ad Delivery & Behavioral Data Analysis
Enable network connection, commercial ad display and ad performance statistics to deliver compliant advertising services
Device Vibration Permission
Operational Haptic Feedback
Trigger vibration feedback upon specific user operations to enhance human-computer interaction
Custom Message Receipt Permission
System Status Monitoring
Monitor real-time device system status to respond promptly to all user operation commands
Cloud Configuration Sync Permission
Cross-Device Preference Synchronization
Sync in-app custom settings and usage preferences via cloud to deliver consistent experience across multiple logged-in devices
Independent Permission Control for Users: You may enable, disable or revoke all permissions at any time via system path: Settings → App Management → This Game → Permission Management. Disabling a certain permission will disable its corresponding functions, please adjust permission settings cautiously.
1.2 Information Submitted Voluntarily by Users
This category covers all personal data you actively submit, generate or upload to us:
· Account Registration Data: Username, email address and other basic information provided during account creation, used for account verification, login authentication and account security risk control;
· User-Generated Content: Game progress data, personalized function configurations, usage preferences and other custom operational data created within the App.
1.3 Automatically Collected System Data
We collect the following non-sensitive data legally and automatically during your use of the App:
· Basic Device Parameters: Device model, operating system version, unique device ID and network connection status, applied for device adaptation, troubleshooting and service stability maintenance;
· App Behavioral Logs: Function usage frequency, operation tracks, performance metrics and crash logs, solely used for bug fixing, function iteration and experience optimization, and will never be disclosed externally.
1.4 Rules for Sensitive Personal Data Processing
We will not proactively collect, access or store sensitive personal data including but not limited to geographic location, contact lists, camera footage and microphone audio recordings.
Sensitive data will only be processed if required for core functions and separate explicit pop-up consent is obtained from you. You may revoke sensitive permissions anytime in device system settings, and we will terminate all collection and processing of such sensitive data immediately upon revocation.
2 Scope of Personal Data Usage
We guarantee that all collected user data shall only be applied to the lawful and compliant business scenarios listed below. Cross-business diversion and unauthorized commercial circulation of private data are strictly forbidden:
1. Operate, maintain and iterate all core App functions to guarantee long-term stable service operation;
2. Conduct account management, identity verification, in-app purchases and compliance transaction risk control;
3. Push personalized service content based on user preferences to elevate overall user experience;
4. Analyze anonymized user behavioral data to optimize product page layout and functional architecture;
5. Release official notifications including version updates, service anomalies and security alerts to protect users’ right to know;
6. Abide by local regulatory rules and national laws to fulfill platform compliance obligations.
3 Third-Party Partner Services and Data Statement
To enrich in-app commercial capabilities and supporting features, the App integrates multiple compliant third-party SDKs and service platforms. All third-party partners process user data independently under their own privacy policies. We have completed rigorous qualification and data security compliance audits for all collaborators and shall not be held liable for their independent data handling activities. You are advised to review their official privacy policies prior to using third-party services.
Third-Party Service Provider
Service Description
Official Privacy Policy Link
Google Pay
In-App Purchase & Subscription Payment Service
https://play.google.com/about/play-terms/
Google Game Services
Game Achievement Recording & Leaderboard Service
https://policies.google.com/privacy
Adjust
User Behavior Analytics & Advertising Attribution
https://www.adjust.com/terms/privacy-policy/
AnyThink
Multi-Channel Ad Aggregation & Distribution
https://www.anythinktech.com/privacy
Vungle
In-Feed Video Ad Display & Delivery
Bigo Ads
Commercial Advertising Display Service
https://www.bigo.sg/privacy/privacy-policy.html
Xiaomi Ads
Targeted Ads Exclusive for Xiaomi Devices
https://privacy.mi.com/miads/en/
Google Ads
Google Ad Network Delivery Service
https://policies.google.com/privacy
InMobi
Ad Delivery & Ad Data Operation Service
https://www.inmobi.com/privacy-policy/
Mintegral
Ad Monetization & Campaign Performance Optimization
https://www.mintegral.com/en/privacy/
Yandex Ads
Cross-Border Ad Display & Distribution
https://yandex.com/legal/confidential/
4 Rules for Personal Information Sharing and Disclosure
We strictly prohibit the sale, trade and rental of any user personal data, and will never disclose user information without authorization. Limited data sharing is only permitted under legal, necessary and minimum-data scenarios as follows:
· Service Collaboration Sharing: Provide third-party service providers with the minimum dataset required to sustain normal operation of core functions and advertising services;
· Statutory Mandatory Disclosure: Submit designated user data in compliance with laws, judicial investigation documents and official requirements from regulatory authorities;
· Public Interest Protection Disclosure: Disclose data lawfully when necessary to prevent fraud, protect user property safety and safeguard public interests;
· Corporate Restructuring Transfer: Transfer necessary user data to successor entities during merger, acquisition, asset transfer and other major corporate restructurings, with successors bound by equivalent privacy protection obligations.
5 Data Storage Solution and Security Protection
5.1 Data Storage Location
All personal business data of users is stored on compliant cloud servers located in Singapore. We fully comply with local data protection laws and regulations of Singapore in data storage, operation and cross-border transmission to ensure full-process compliance.
5.2 Security Measures and Liability Disclaimer
We establish a dual security system combining technical safeguards and administrative management, including encrypted data transmission, hierarchical access control for internal staff and periodic security vulnerability audits, to prevent data leakage, tampering and unauthorized access.
Absolute security cannot be guaranteed for internet transmission and electronic data storage. We accept no liability for data security incidents caused by hacking attacks, natural disasters, third-party violations, force majeure and other factors beyond our reasonable control.
6 Users’ Statutory Privacy Rights
You enjoy the following independent legal rights related to personal data during App usage, and we will provide free full cooperation for you to exercise these rights:
· Right to Erasure: Request permanent deletion of your personal data retained by us;
· Right of Permission Management: Enable, disable or revoke all system permissions granted to the App voluntarily;
· Right to Opt Out of Personalized Ads: Turn off targeted personalized advertising recommendations independently;
· Right to Access and Know: Apply for copies of your personal data and inspect detailed records of data collection, storage and usage.
7 Minor Privacy Protection Clause
This App is designed for adult users only and is unavailable for minors under 13 years old. We will not actively collect personal identity and privacy data from minors. If minor data is obtained accidentally due to operational negligence, we will delete all relevant records completely immediately to eliminate leakage risks.
If you are the legal guardian of a minor and find the minor has used the App and submitted personal information without your consent, please contact us via the official email listed at the end of this Policy. We will verify the case and erase relevant data urgently.
8 Policy Revision and Validity Rules
We reserve the right to revise this Policy irregularly in response to legal updates, product function iteration and business scope adjustment.
Material revisions to privacy rules will be notified prominently via in-app pop-ups and internal messages, with the latest update date posted publicly. Your continued use of the App services after updates constitutes full acceptance of the revised Policy. If you reject the updated terms, you may stop using and uninstall the App at any time.
9 Official Inquiry and Contact Information
If you have questions, comments or suggestions regarding this Privacy Policy, need to exercise personal information rights or report privacy security issues, please reach us via the official contact channels below: Developer: NJJMKJ Contact Email: lakenyarterinan@gmail.com
We will complete identity verification upon receiving your request, conduct investigation and processing within a reasonable time frame and send formal replies to fully protect your legitimate privacy rights and interests.