Privacy Policy

Last Updated: July 11, 2026

Effective Date: July 11, 2026

Revision: 1.0

Revision History

1. Introduction

This Privacy Policy describes how Sia Makerlab ("we," "us," or "our") collects, uses, and shares information in connection with your use of the QueryDock for Cassandra/Scylla mobile application (the "App").

The App is an Android client for Apache Cassandra and ScyllaDB clusters that you specify. It connects directly from your device to the clusters you configure using the native CQL binary protocol. It does not require you to create an account, and we do not operate a server that stores your connection details or your data. By downloading, installing, or using the App, you agree to the collection and use of information in accordance with this Privacy Policy. If you do not agree, please do not use the App.

2. Information We Collect

2.1 Information You Provide

The App is designed to function without an account or personal information. We do not collect your name, email address, phone number, or physical address.

To connect to a cluster, you provide its details — host and port, authentication credentials, and transport options such as TLS with optional CA pinning and mutual TLS (mTLS) client certificates. This configuration is stored locally on your device and is not collected by us.

2.2 Connections You Configure (Outbound Requests)

When you open a connection, the App communicates directly from your device to the Cassandra or ScyllaDB cluster you specified using the native CQL binary protocol — there is no server-side agent and no REST gateway. Your CQL statements, schema queries, and their results travel between your device and that cluster — not through us. We do not see, receive, or store your clusters, credentials, queries, or data. You are responsible for ensuring you are authorized to access any cluster you connect to.

2.3 Information Stored on Your Device

The App stores the following data only on your device:

This data is stored exclusively on your device. We do not have access to it, and it is never transmitted to our servers.

2.4 Permissions

• Internet (INTERNET): required to connect to the clusters you configure and to serve ads.
• Network state (ACCESS_NETWORK_STATE): used to detect network availability.
• Advertising ID (AD_ID): used by Google AdMob to serve ads (see Section 2.5).

The App does not request location, contacts, camera, microphone, storage, or other sensitive runtime permissions.

2.5 Advertising Data (Third-Party)

Unless you purchase the ad-removal option, the App displays advertising through Google AdMob (app-open, banner, and native formats). Our advertising partner may collect:

• Advertising ID (Android Advertising ID)
• Device information (device type, operating system version)
• IP address
• General location data (country/region level)
• Ad interaction data

Where required, the App uses Google's User Messaging Platform (UMP) to obtain your consent for personalized advertising. Ad requests never fire before consent allows them. This data collection is governed by Google's Privacy Policy: https://policies.google.com/privacy

2.6 Information We Do NOT Collect

We explicitly do not collect:

• Personal or contact information
• Your clusters, credentials, queries, or database contents
• Analytics or usage tracking data by us directly
• Precise location data
• Payment or card information (handled by Google Play)

3. How We Use Information

3.1 Local Data Usage

Data stored on your device is used locally to:

• Establish the connections you configure and run your CQL statements
• Remember your connection profiles and history
• Apply your settings and preferences
• Apply your ad-removal entitlement

3.2 Third-Party Data Usage

Data collected by Google AdMob and Google UMP is used to display personalized or non-personalized advertisements (based on your consent) and to prevent fraud and abuse. Data collected by Google Play Billing is used to process and reconcile your purchase.

4. Data Sharing and Disclosure

4.1 We Do Not Sell Your Data

We do not sell, trade, or rent your personal information to third parties.

4.2 Third-Party Service Providers

The App integrates the following third-party services, which handle data according to their own privacy policies:

Separately, the App communicates directly with the Cassandra and ScyllaDB clusters you specify. Those clusters are operated by you or by parties you choose, and their handling of your connections and data is outside our control.

4.3 Legal Requirements

We may disclose information if required to do so by law or in response to valid requests by public authorities. As we hold no user content, such disclosure would be limited to information actually in our possession.

5. Data Retention

5.1 Local Data

Data stored on your device remains until you delete it within the App, clear app data in device settings, or uninstall the App.

5.2 Third-Party Data

Data collected by Google's advertising, consent, and billing services is retained according to their respective policies.

6. Your Rights and Choices

6.1 For All Users

You have the right to:

• Access: View your data within the App
• Delete: Remove connection profiles in the App, or clear app data or uninstall the App to remove all local data
• Opt out of personalized ads: Manage ad personalization through your device's advertising settings or the UMP consent options

6.2 For Users in the EEA, United Kingdom, and Switzerland

Under the GDPR and applicable laws, you also have the rights to access, rectification, erasure, restriction of processing, data portability, objection, and withdrawal of consent. To exercise rights over data held by a third-party service, contact that service directly.

6.3 Managing Consent

Manage advertising consent through:

• In-App: privacy/consent options provided via Google UMP
• Device Settings: Android Settings > Google > Ads

7. Data Security

We implement reasonable technical measures to protect data on your device:

• Connection passwords are encrypted at rest with the Android Keystore (AES-GCM)
• Transport can be secured with TLS, optional CA pinning, and mutual TLS (mTLS) client certificates
• Data is stored only on your device; we operate no server and keep no copies
• No cloud synchronization and no user accounts
• Network access is used only to reach the clusters you configure and to serve third-party advertising

8. Children's Privacy

The App is not directed to children under the age of 13 (or 16 in the EEA). We do not knowingly collect personal information from children.

9. International Data Transfers

Data collected by third-party services may be transferred to and processed in countries with different data protection laws. Please refer to Google's Privacy Policy for more information.

10. Changes to This Privacy Policy

We may update this Privacy Policy from time to time. We will notify you of any changes by updating the "Last Updated" date and, for material changes, displaying a notice within the App.

11. Disclaimer of Liability

11.1 Third-Party Services

We are not responsible for the data collection, use, or security practices of third-party services integrated into the App, including Google AdMob, Google UMP, and Google Play Billing, nor for the clusters you choose to connect to.

11.2 Data Loss

We are not responsible for any loss of data stored locally on your device, including your connection profiles and query history.

11.3 Limitation of Liability

TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, WE SHALL NOT BE LIABLE FOR ANY INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL, OR PUNITIVE DAMAGES RESULTING FROM YOUR USE OF THE APP.

12. Governing Law

This Privacy Policy shall be governed by the laws of the Republic of Korea. For EU users, it shall be interpreted in accordance with applicable EU law including the GDPR.

13. Contact Us

Sia Makerlab

• Email: sia@siamakerlab.com
• Website: https://siamakerlab.com

For GDPR-related inquiries from EEA residents, please include "GDPR Request" in the subject line.

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Summary of Data Practices

*Collected by third-party services (Google), not by us directly.

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This Privacy Policy is available in English. If translated versions are provided, the English version shall prevail in case of any discrepancy.