Privacy Policy

1. Introduction

Decantech ("we," "our," or "us") is committed to protecting your privacy. This Privacy Policy explains how TravelNum ("the App") collects, uses, discloses, and safeguards your information when you use our mobile application.

Key Privacy Principles:

• Minimal Data Collection: We collect only essential information needed to operate the App
• Local-First Processing: Most data is stored locally on your device, not on our servers
• No User Accounts: The App does not require account creation or login
• Transparency: We clearly explain what data is collected and why
• Your Control: You maintain control over your data and preferences

Please read this Privacy Policy carefully. If you do not agree with the terms of this Privacy Policy, please do not use the App.

2. Information We Do NOT Collect

To be clear about our privacy-focused approach, TravelNum does NOT collect or store:

• Your name, email address, phone number, or other personal identifiers (unless you contact us for support)
• The specific numbers you convert or translate
• Your conversion history
• Your location data or GPS coordinates
• Your contacts, photos, or other device data
• Biometric information
• Social media profiles or information
• Credit card or payment information (handled by Apple/Google)

3. Information Collected and Stored Locally on Your Device

The following information is stored locally on your device only and is never transmitted to our servers:

3.1 App Preferences

• Selected language: Your currently selected language for number conversion
• Favorite languages: Languages you've marked as favorites for quick access
• These preferences are stored using secure device storage (AsyncStorage) and remain under your complete control

3.2 Usage Statistics (Local Only)

To provide features like review prompts and ad management, the App stores locally:

• App usage metrics: Number of app sessions, install date, conversion count
• Feature usage: Text-to-speech plays, languages tried, favorites added
• Ad experience data: Number of ad displays, interstitial timing, ad-free pass status
• Review prompt tracking: Number of review prompts shown, dates, and eligibility status

Important: This data never leaves your device. It is used solely to improve your in-app experience and determine appropriate times to request app reviews or display ads.

3.3 Number Conversion Processing

• All number conversions are processed locally on your device
• Your numbers are never transmitted to servers or stored in any database
• Conversions work completely offline without internet connection

4. Information Collected by Third-Party Services

While TravelNum itself collects minimal data, we integrate with third-party services that may collect information according to their own privacy policies:

4.1 RevenueCat (Subscription Management)

Purpose: Managing in-app purchases and premium subscriptions

Information Collected:

• Anonymous user identifier (generated by RevenueCat)
• Purchase history and subscription status
• Device type and operating system
• App version

Data Use: To process purchases, verify subscription status, prevent fraud, and provide customer support

Privacy Policy: https://www.revenuecat.com/privacy

4.2 Google Mobile Ads (Advertising - Free Version Only)

Purpose: Displaying advertisements in the free version of the App

Information Collected (with your consent):

• Device advertising identifier (IDFA on iOS, AAID on Android)
• Device type, operating system, and app version
• IP address (approximate location)
• Ad interaction data (views, clicks)
• Information used for ad personalization (if you consent)

Data Use: To serve relevant advertisements and measure ad performance

Your Choices:

• Personalized Ads: You can consent to or decline personalized ads through the in-app consent dialog
• Ad-Free Experience: Upgrade to premium to completely remove ads and ad-related data collection
• Device Settings: Manage ad tracking through your device settings:
  • iOS: Settings > Privacy & Security > Tracking
  • Android: Settings > Privacy > Ads

Privacy Policy: https://policies.google.com/privacy

4.3 Apple App Store / Google Play Store

Purpose: App distribution, installation, and payment processing

Information Collected: Managed entirely by Apple or Google according to their privacy policies

Payment Processing: All subscription and in-app purchase transactions are processed by Apple or Google. We do not have access to your payment information.

Privacy Policies:

• Apple: https://www.apple.com/legal/privacy/
• Google: https://policies.google.com/privacy

4.4 Expo and React Native

Purpose: App development framework

Information Collected:

• Crash reports and diagnostic data (if you consent to share app analytics with Apple/Google)
• Performance metrics for app stability

Note: This data is anonymized and used solely to improve app stability and performance.

5. Text-to-Speech Processing

The App uses your device's built-in text-to-speech engine (via expo-speech) to pronounce numbers:

• Processing: Entirely local on your device
• Data Transmission: No audio or text data is sent to our servers
• Privacy: Your device's system handles speech synthesis according to your device's privacy settings

6. How We Use Information

The minimal information we process is used solely to:

6.1 Core Functionality

• Provide number conversion and pronunciation services
• Remember your language preferences and favorites
• Enable offline functionality

6.2 App Improvement

• Understand which features are most used
• Identify and fix bugs or crashes
• Improve app performance and user experience

6.3 Premium Features

• Process subscription purchases (via RevenueCat and App Store/Play Store)
• Verify premium subscription status
• Provide ad-free experience to subscribers

6.4 Advertising (Free Version)

• Display advertisements (via Google Mobile Ads)
• Manage ad frequency and timing for better user experience
• Comply with advertising regulations

6.5 Customer Support

• Respond to your inquiries and support requests
• Investigate and resolve issues you report
• Communicate important updates about the App

7. Data Sharing and Disclosure

7.1 What We Share

We do not sell, trade, or rent your personal information. We share limited information only with:

Third-Party Service Providers:

• RevenueCat (subscription management)
• Google Mobile Ads (advertising)
• Apple/Google (app distribution and payments)

These providers have access only to information necessary to perform their functions and are obligated to protect your information.

7.2 Legal Requirements

We may disclose your information if required to do so by law or in response to:

• Valid legal processes (subpoena, court order)
• Protection of our rights, property, or safety
• Investigation of fraud or security issues
• Enforcement of our Terms of Service

7.3 Business Transfers

If Decantech is involved in a merger, acquisition, or asset sale, your information may be transferred. We will provide notice before your information becomes subject to a different Privacy Policy.

7.4 Aggregate Data

We may share anonymized, aggregate statistics about app usage that cannot identify individual users.

8. Data Storage, Security, and Retention

8.1 Where Data is Stored

• Local Data: Stored securely on your device using encrypted storage (AsyncStorage)
• Third-Party Data: Stored by respective service providers (RevenueCat, Google) in accordance with their policies
• No Central Database: We do not maintain servers that store your personal data or conversion history

8.2 Security Measures

We implement appropriate technical and organizational security measures, including:

• Secure coding practices
• Regular security updates
• Encrypted data transmission (HTTPS)
• Secure third-party service providers

Important: While we strive to protect your information, no method of transmission over the internet or electronic storage is 100% secure. We cannot guarantee absolute security.

8.3 Data Retention

Local Data: Retained on your device until you:

• Uninstall the App
• Clear app data through device settings
• Manually reset preferences within the App

Third-Party Data:

• RevenueCat: Retained according to their retention policy (typically as long as needed for business/legal purposes)
• Google Ads: Retained according to Google's advertising data retention policies
• App Store/Play Store: Retained according to Apple/Google policies

Support Communications: If you contact us for support, we retain your communications only as long as necessary to provide support and resolve issues.

9. Your Privacy Rights and Choices

Depending on your location, you may have certain rights regarding your personal information:

9.1 General Rights

• Access: Request information about data we have collected about you
• Correction: Request correction of inaccurate information
• Deletion: Request deletion of your information
• Objection: Object to certain data processing activities
• Portability: Request a copy of your data in a portable format
• Withdraw Consent: Withdraw consent for data processing at any time

9.2 Exercising Your Rights

To exercise these rights:

• Local Data: Uninstall the App or clear app data through device settings
• Subscription Data: Contact RevenueCat support or use in-app subscription management
• Advertising Data: Manage through device settings or opt out of personalized ads
• General Inquiries: Email us at privacy@travelnum.com

We will respond to valid requests within a reasonable timeframe as required by applicable law.

9.3 Ad Preferences

• In-App Consent: Manage ad personalization through the consent dialog shown when you first use the App
• Device Settings:
  • iOS: Settings > Privacy & Security > Tracking and Advertising
  • Android: Settings > Privacy > Ads > Opt out of Ads Personalization
• Premium Upgrade: Subscribe to premium for a completely ad-free experience

10. Children's Privacy

TravelNum is intended for general audiences and does not knowingly collect personal information from children under 13 years of age (or the applicable age of digital consent in your jurisdiction).

If you are a parent or guardian and believe your child has provided us with personal information:

• Contact us immediately at privacy@travelnum.com
• We will investigate and delete such information promptly

The App does not include:

• Features specifically directed at children
• Age-gated content
• Collection of personal information from children

11. International Data Transfers

TravelNum is available globally. If you use the App outside your country:

11.1 Data Transfers

Your information may be transferred to and processed in countries other than your own, including:

• United States (where RevenueCat and Google are based)
• Countries where our service providers operate

11.2 Safeguards

When we transfer data internationally, we implement appropriate safeguards, including:

• Standard contractual clauses
• Service providers certified under privacy frameworks
• Technical and organizational security measures

11.3 Your Consent

By using the App, you consent to the transfer of your information to countries that may have different data protection laws than your country.

12. Regional Privacy Rights

12.1 European Economic Area (EEA) / UK - GDPR

If you are located in the EEA or UK, you have additional rights under the General Data Protection Regulation (GDPR):

Legal Basis for Processing:

• Consent: For personalized advertising and optional features
• Contract Performance: For providing core App functionality and subscription services
• Legitimate Interests: For app improvement, security, and fraud prevention
• Legal Obligations: For compliance with applicable laws

Additional GDPR Rights:

• Right to lodge a complaint with your local data protection authority
• Right to object to processing based on legitimate interests
• Right to restriction of processing under certain circumstances

Data Protection Officer: For GDPR inquiries, contact legal@travelnum.com

12.2 California Residents - CCPA/CPRA

If you are a California resident, the California Consumer Privacy Act (CCPA) and California Privacy Rights Act (CPRA) provide you with specific rights:

Information We Collect (Categories under CCPA):

• Identifiers: Device ID, advertising ID (if you consent)
• Commercial information: Purchase history (via App Store/Play Store)
• Internet activity: App usage data (stored locally)
• Inferences: App preferences (stored locally)

Your California Rights:

• Right to Know: Request disclosure of personal information collected, used, and shared
• Right to Delete: Request deletion of your personal information
• Right to Opt-Out: Opt-out of sale or sharing of personal information
• Right to Non-Discrimination: Exercise rights without discriminatory treatment
• Right to Correct: Request correction of inaccurate information
• Right to Limit: Limit use of sensitive personal information

We Do Not Sell Your Personal Information: TravelNum does not sell personal information as defined by CCPA.

Authorized Agents: You may designate an authorized agent to make requests on your behalf. We may verify both your and the agent's identity.

Contact for California Residents: privacy@travelnum.com or legal@travelnum.com

12.3 Brazil - LGPD

If you are located in Brazil, the Lei Geral de Proteção de Dados (LGPD) provides you with specific data protection rights similar to GDPR, including rights to access, correction, deletion, and portability.

12.4 Other Jurisdictions

We comply with applicable data protection laws in all jurisdictions where the App is available. If you have questions about your specific rights, contact us at privacy@travelnum.com.

13. Cookies and Tracking Technologies

13.1 App-Based Tracking

TravelNum uses local storage (AsyncStorage) to store preferences and app state on your device. This is not a cookie but functions similarly to remember your settings.

13.2 Advertising Tracking

Google Mobile Ads may use tracking technologies to deliver and measure advertisements. You can control this through:

• In-app consent management
• Device-level advertising preferences
• Upgrading to premium for an ad-free experience

13.3 Analytics

If you enable app analytics through your device settings (sharing app usage with developers), anonymized crash and performance data may be collected to improve app stability.

14. Do Not Track Signals

The App does not respond to Do Not Track (DNT) signals because:

• Most data is processed locally on your device
• Third-party services (Google Ads) have their own DNT policies
• You can control ad tracking through device settings

15. Changes to This Privacy Policy

15.1 Updates

We may update this Privacy Policy from time to time to reflect:

• Changes in our practices
• Changes in applicable laws
• New features or services
• Feedback from users

15.2 Notification

When we make material changes, we will:

• Update the "Last updated" date at the top
• Notify you through the App or via email (if we have your email)
• Provide a prominent notice in the App
• Give you an opportunity to review changes before they take effect

15.3 Continued Use

Your continued use of the App after changes are posted constitutes acceptance of the updated Privacy Policy.

15.4 Review

We encourage you to review this Privacy Policy periodically to stay informed about how we protect your information.

16. Contact Us

We value your privacy and are committed to addressing your concerns. If you have questions, comments, or requests regarding this Privacy Policy or our privacy practices:

Email Addresses:

• Privacy Inquiries: privacy@travelnum.com
• Legal/GDPR/CCPA Inquiries: legal@travelnum.com
• General Support: support@travelnum.com

Response Time: We aim to respond to all inquiries within 30 days (or as required by applicable law).

What to Include in Your Request:

• Clear description of your inquiry or request
• Specific right you wish to exercise (if applicable)
• Information to help us identify your data (device type, approximate dates)
• Preferred contact method for our response