Privacy Policy

1. Introduction

Welcome to LinuxDict, your comprehensive Linux and shell command reference application. This Privacy Policy explains how we collect, use, and protect your information when you use our app. We are committed to ensuring your privacy is protected and being transparent about our data practices.

2. About LinuxDict

LinuxDict is a feature-rich Android application designed for developers, system administrators, and Linux enthusiasts. The app serves as an offline reference guide for Linux and shell commands, making it easy to quickly look up command syntax, options, and examples.

Features include:

• 3,500+ Linux and shell commands with descriptions, options, and practical examples
• 8 command categories: Basic Linux, Networking & Security, Scripting, Shell Builtins, Keyboard Shortcuts, Text Processing, Filesystem & Permissions, Operators & Regex
• A-Z tab navigation within each category for quick browsing
• Full-text search across all commands with search history saved locally
• Bookmarks — saved locally on your device, never transmitted
• One-tap copy for command syntax and examples
• 7 color themes (Catppuccin, Dracula, Nord, Gruvbox, Solarized, One Dark, Tokyo Night) with light and dark mode
• Adjustable font size (10–30 sp) and font weight options
• Full offline access — no internet required for core functionality

3. Information We Collect

To improve our app and provide relevant advertisements, we collect certain information through third-party services. Here is a full breakdown:

Device information collected:

• Device model and manufacturer
• Operating system version and API level
• App version and build number
• Screen resolution and density
• Network connection type (Wi-Fi / cellular)
• Language and region settings
• Google Advertising ID (GAID)
• Firebase Installation ID (FID)
• Install source / referrer data

Data stored locally on your device only:

• Bookmarks: saved command IDs, names, syntax, and timestamps
• Search history: your recent search queries (up to 15 entries)
• App preferences: theme, font size, font weight, dark mode setting, last viewed category

4. How We Use Your Information

Analytics & improvement:

• Analyse app usage patterns to understand which features are most used
• Identify areas for improvement in user experience
• Track app performance and stability metrics
• Make data-driven decisions about feature development

Crash reporting:

• Automatically collect crash reports to identify and fix bugs
• Improve app stability and prevent future crashes
• Ensure smooth experience across different devices

Advertising:

• Display relevant advertisements to support free app development
• Personalise ads based on user interests and behaviour
• Measure ad performance to optimise ad delivery
• Generate revenue to maintain and improve the app

5. Data Sharing & Third-Party Services

Google Firebase (Analytics & Crashlytics)

• Purpose: Analytics, crash reporting, and app performance monitoring
• Data shared: App usage data, crash logs, device information
• Privacy policy: https://policies.google.com/privacy

Google AdMob (Advertising)

• Purpose: Display advertisements and measure ad performance
• Data shared: Advertising ID, device identifiers, ad interaction data
• Privacy policy: https://policies.google.com/privacy

6. Data Security

• All data transmission to third-party services is encrypted using HTTPS
• We use industry-standard security practices to protect collected data
• Third-party services (Google Firebase, AdMob) maintain their own security measures
• No sensitive personal information (passwords, financial data) is collected or stored
• All bookmarks, search history, and preferences are stored locally and never transmitted to any server
• The app does not read from your clipboard — copy operations are write-only and user-initiated

7. Your Rights & Choices

Advertising personalisation:

• You can opt out of personalised ads by adjusting your device's advertising settings
• On Android: Settings → Google → Ads → Reset advertising ID or opt out of ad personalisation
• Note: opting out may result in less relevant advertisements

Your local data:

• All bookmarks, search history, and preferences are stored on your device only
• You can clear all local data by clearing the app's storage in your device settings
• No personal content is ever sent to our servers or any third party

8. Children's Privacy

LinuxDict is not intended for children under the age of 13. We do not knowingly collect personal information from children under 13. If we become aware that we have collected such information, we will take steps to delete it immediately.

9. Changes to This Policy

We may update this privacy policy from time to time to reflect changes in our practices, technology, or legal requirements. We encourage you to review this page periodically. Any significant changes will be communicated through app updates, and the effective date at the top of this page will be updated accordingly.

10. Legal Basis for Data Processing

• Legitimate interest: improving app functionality and user experience through analytics and crash reporting
• Contractual necessity: providing the free app with advertising support as described
• Consent: where applicable, your consent to personalised advertising through device settings

11. Contact Information

If you have any questions, concerns, or requests regarding this privacy policy or our data practices, please contact us:

• Email: Send us an email
• App: LinuxDict
• Package: com.weltekxdev.linuxdict.app

We respond to inquiries within 5–10 business days.