Privacy Policy

Last updated: April 14, 2026

Tarja ("we", "our", "the app") is a real-time speech translation application developed by Sahouri Consulting LLC. This policy describes how we collect, use, and protect your information.

Information We Collect

• Account information: Name, email address, and preferred language when you create an account via Google Sign-In or Apple Sign-In.
• Phone number (optional): If you choose to add a phone number to help friends find you. We store a one-way hash of your contacts' phone numbers for friend discovery, not the raw numbers.
• Voice and audio: When you use translation features, audio is temporarily processed on our servers for speech recognition and translation. Audio from live sessions is not permanently stored. Voice messages you send are stored for delivery.
• Messages: Text and voice messages are stored on our servers to enable delivery, translation, and message history.
• Call data: Call history (caller, recipient, time, duration, status) and call transcripts are stored for your reference.
• Device information: Device platform (iOS/Android) and push notification tokens for delivering notifications.
• Usage data: Number of translation sessions used for trial tracking.

How We Use Your Information

• Provide real-time speech-to-speech translation
• Deliver text and voice messages with automatic translation
• Send call and message notifications to your device
• Generate AI summaries of calls and interpreter sessions upon your request
• Enable contact discovery so friends can find you
• Manage your account, trial status, and access

AI and Translation Processing

All speech recognition, machine translation, text-to-speech, and AI summary generation occurs on our own servers. We do not send your conversation content to third-party AI services such as OpenAI, Google Cloud AI, or Amazon. Our AI models run entirely on our infrastructure.

Data Sharing

We do not sell your personal information. We share limited data with the following services to operate the app:

• Firebase Authentication (Google): For secure sign-in and identity verification.
• Apple Push Notification service (APNs): To deliver call and message notifications to iOS devices.
• Firebase Cloud Messaging (FCM): To deliver notifications to Android devices.

Push notification payloads may include the caller's name to identify incoming calls.

Data Retention

• Messages and call history: Retained for 365 days, then automatically deleted.
• Call and interpreter transcripts: Retained for 365 days, then automatically deleted.
• Temporary session audio: Deleted within 60 minutes of the session ending.
• Voice messages: Retained until deleted by the sender.
• Account data: Retained until you request account deletion.
• Audit logs: Retained for 6 years as required by applicable regulations.

Data Security

• All data transmitted between the app and our servers is encrypted using HTTPS/TLS.
• Authentication uses Firebase Auth with cryptographically signed tokens.
• All API access is logged with structured audit trails.
• WebSocket connections require authentication tokens.
• Idle sessions are automatically disconnected after 30 minutes.

Your Rights

You have the right to:

• Access: View your profile, messages, call history, and transcripts within the app.
• Correct: Edit your name, language, phone number, and avatar in Settings.
• Delete: Delete individual messages, interpreter sessions, and request full account deletion.
• Block: Block contacts to prevent them from calling or messaging you.
• Export: Share transcripts via the app's Share feature.

To request account deletion, contact privacy@sahouri.net.

Children's Privacy

Tarja is not directed at children under 13. We do not knowingly collect personal information from children under 13. If you believe a child has provided us with personal information, please contact us.

International Users

Our servers are located in the United States. By using Tarja, you consent to the transfer and processing of your data in the United States.

Changes to This Policy

We may update this privacy policy from time to time. We will notify you of material changes by posting the updated policy in the app or on our website. The "last updated" date at the top reflects the most recent revision.

Contact Us

If you have questions about this privacy policy or wish to exercise your data rights, contact us at:

Email: privacy@sahouri.net
Sahouri Consulting LLC