Last updated: May 27, 2026
SINTA Technology Co., Ltd (CÔNG TY TNHH CÔNG NGHỆ SINTA), Business Registration Number 4001328898, registered at 8/1 Kiet 1/2 Nguyen Hoang Street, Ban Thach Ward, Da Nang City, Vietnam ("we", "us", "our") develops and publishes mobile applications on the Google Play Store and Apple App Store.
This Privacy Policy applies to all applications published by SINTA Technology Co., Ltd. It describes how we collect, use, and protect your information when you use any of our applications and services. By installing or using any SINTA Technology application, you agree to the terms of this Privacy Policy.
Depending on the type of application, we may collect the following categories of information:
Some of our applications store data locally on your device only (such as preferences, progress, and settings). This data is NOT transmitted to our servers or any third parties. Uninstalling the application will permanently remove all locally stored data.
Some of our applications may require or allow you to provide personal information for specific features. When applicable, we may collect:
Each application's listing on Google Play Store or Apple App Store specifies exactly what data that application collects. We encourage you to review the Data Safety section of each app before installing.
When you contact our customer support team, we may collect and store contact information you provide (generally your name and email address), as well as information about your usage of the application, so that we can appropriately respond to your inquiries. We will also store the correspondence and any related information.
Depending on the application, we may request certain device permissions. Permissions are only requested when necessary and you can manage them at any time through your device settings. Common permissions include:
Not all applications request all of the above permissions. Each application only requests the permissions it needs to function.
Most of our applications do NOT collect or use your precise geographic location. If any application requires location access, it will be clearly stated in the app's permission request and in the Data Safety section on the app store listing. Location data, if collected, is used solely for the functionality of that specific application and is not shared with third parties for advertising or marketing purposes.
Collected information is used for the following purposes:
For applications that store data locally, all data remains on your device and is not transmitted externally.
For applications that use cloud-based features, user data may be stored on secure third-party cloud servers (such as Google Firebase, Google Cloud Platform) with enterprise-grade encryption and security measures. Access to your data is restricted by security rules — only authorized users can access their own data.
We implement reasonable security measures to protect your information, including:
We do NOT sell, rent, or share your personal information with any third parties, except in the following cases:
Our applications may use the following third-party services. Each service has its own privacy policy:
Core Google services required for Android applications.
Place of processing: USA — Privacy Policy
Web and app analysis services provided by Google Inc. Google utilizes the data collected to track and examine the use of our applications, to prepare reports on activities and share them with other Google services. Data collected: anonymous usage data and device identifiers.
Place of processing: USA — Privacy Policy — Opt Out
You can disable Google Analytics with this add-on tool.
Firebase is a hosting, backend, and analytics platform provided by Google Inc. Our applications may use Firebase services including Authentication, Cloud Firestore, Realtime Database, Cloud Messaging, and Crashlytics — depending on the application. Personal data collected varies by service as specified in the Firebase privacy policy.
Place of processing: USA — Privacy Policy
Used to prompt users for app ratings within the application.
Place of processing: USA — Privacy Policy
Some of our applications may display advertisements through Google AdMob. AdMob may collect device identifiers (such as Advertising ID, Cookie, and Usage data) for ad personalization. You can opt out of personalized advertising through your device settings (Settings → Google → Ads → Opt out of Ads Personalization).
For users in the European Economic Area (EEA), United Kingdom, and other regions where consent is required, we use Google's User Messaging Platform (UMP) to collect your consent before serving personalized advertisements. You can change your consent preferences at any time through the consent form presented within the application, or by contacting us.
We configure our ads to display only age-appropriate content (G-rated) and do not serve personalized advertisements to users identified as children.
Place of processing: USA — Privacy Policy — Opt Out
Some of our applications offer in-app purchases through Google Play Billing. Payment processing is handled entirely by Google Play. We do NOT collect, store, or have access to your payment information (credit card numbers, billing address, etc.). We only receive a purchase confirmation token from Google to verify and deliver the purchased content.
Place of processing: USA — Privacy Policy
Our applications are not directed to children under 13 years of age. We do not knowingly collect personal information from children under 13. If you are a parent or guardian and discover that your child has provided personal information to us, please contact us immediately so we can take appropriate action to delete such information.
For applications that display advertisements, we configure ad content ratings to show only family-friendly content (G-rated). We also set appropriate COPPA (Children's Online Privacy Protection Act) compliance flags in our ad requests to ensure child-safe ad experiences.
We retain collected data only for as long as necessary to fulfill the purposes outlined in this policy.
For detailed information about data deletion, please visit our Data Deletion Policy page.
You have the right to:
You use our applications at your own risk. While we follow reasonable procedures to create reliable software, we cannot guarantee that the applications are completely error-free. We are not responsible for any loss, damage, or charges incurred while using our applications.
We may update this Privacy Policy from time to time. Changes will be posted on this page with an updated revision date. We encourage you to review this policy periodically.
If you have any questions about this Privacy Policy, please contact us: