Privacy Policy

Last Updated: December 7, 2025

Introduction

Welcome to Sinai ("we," "our," or "us"). We respect your privacy and are committed to protecting your personal information. This Privacy Policy explains how we collect, use, and safeguard your information when you use the Sinai mobile application.

Information We Collect

Information You Provide

Account Information: When you sign in using social authentication (Google, Apple, etc.), we collect:

• Name

• Email address

• Profile picture (optional)

• Unique user identifier

Listening Preferences: We collect and store:

• Your listening history and progress

• Bookmarks and saved episodes

• Playback preferences (speed, volume settings)

• Bible translation preferences

Automatically Collected Information

Device Information: We collect:

• Device type and model

• Operating system version

• App version

• Device identifiers (for crash reporting and analytics)

Usage Data: We collect:

• Features used within the app

• Session duration and frequency

• Error logs and crash reports

• Analytics data to improve app performance

Local Storage: The following data is stored locally on your device:

• Downloaded audio episodes

• Listening history and progress

• User preferences and settings

• Cached content for offline access

How We Use Your Information

We use the collected information to:

• Provide Seamless Playback: Sync your listening progress across devices and sessions

• Personalize Experience: Remember your preferences and continue where you left off

• Improve Our Service: Analyze usage patterns to enhance app features and performance

• Technical Support: Diagnose and fix technical issues

• Communication: Send important updates about the app (with your consent)

AI-Generated Content

Important Notice: All audio narrations in Sinai are generated using artificial intelligence text-to-speech technology. While we strive for accuracy and quality, AI-generated voices may occasionally mispronounce words or lack the nuance of human narration. The narrations are based on established Bible translations and are intended to faithfully represent the source text.

Data Storage and Security

Cloud Storage

We use Firebase and secure cloud infrastructure to store:

• User account information

• Listening history and progress

• User preferences

Local Storage

The following data remains on your device only:

• Downloaded episodes

• Cached content

• Local preferences backup

Security Measures

We implement industry-standard security measures including:

• Encrypted data transmission (SSL/TLS)

• Secure authentication protocols

• Regular security audits

• Access controls and monitoring

However, no method of electronic storage is 100% secure. While we strive to protect your information, we cannot guarantee absolute security.

Data Sharing and Disclosure

We Do Not Sell Your Data

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

Third-Party Services

We use the following third-party services that may collect information:

• Firebase (Google): Authentication, cloud storage, and analytics

• Google Cloud Platform: Text-to-speech services and infrastructure

• Social Authentication Providers: For sign-in functionality

These services have their own privacy policies governing their use of information.

Legal Requirements

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

• Valid legal processes (subpoenas, court orders)

• Protection of our rights or property

• Prevention of fraud or illegal activity

• Protection of user safety

Your Rights and Choices

Access and Update

You can access and update your account information at any time through the app settings.

Delete Your Account

You may request deletion of your account and associated data by contacting us at voices@getsinai.app. Upon deletion:

• Your account will be permanently removed

• Cloud-stored listening history will be deleted

• Local data will remain on your device until you uninstall the app

Opt-Out Options

You can opt out of:

• Analytics tracking (through device settings)

• Push notifications (through app settings)

• Email communications (via unsubscribe links)

Data Portability

You may request a copy of your data by contacting voices@getsinai.app.

Children's Privacy

Sinai is intended for users aged 13 and older. We do not knowingly collect personal information from children under 13. If we become aware that a child under 13 has provided us with personal information, we will take steps to delete such information. If you believe a child has provided us with personal information, please contact us at voices@getsinai.app.

International Data Transfers

Sinai operates from Lagos, Nigeria. If you access our app from outside Nigeria, your information may be transferred to, stored, and processed in Nigeria or other countries where our service providers operate. By using Sinai, you consent to such transfers.

Changes to This Privacy Policy

We may update this Privacy Policy from time to time. We will notify you of significant changes by:

• Posting the new Privacy Policy in the app

• Updating the "Last Updated" date

• Sending a notification (for material changes)

Your continued use of Sinai after changes constitutes acceptance of the updated Privacy Policy.

Data Retention

We retain your information for as long as your account is active or as needed to provide services. When you delete your account:

• Account data is deleted within 30 days

• Backup copies are removed within 90 days

• Anonymized analytics data may be retained indefinitely

Contact Us

If you have questions, concerns, or requests regarding this Privacy Policy or our data practices, please contact us:

Email: voices@getsinai.app
Response Time: We aim to respond within 5 business days

Sinai
Lagos, Nigeria