Privacy Policy

Last updated: July 19, 2026

Arc Foundry, Inc. (“Company,” “we,” “us”) operates Hallie, an AI-powered conversational companion available through text messaging and, for accounts and locations where offered, voice calling. This Privacy Policy describes what information we collect, how we use it, and your choices regarding that information.

1. Information we collect

Information you provide

  • Phone number (used to create your account and deliver messages)
  • First and last name
  • Onboarding responses (such as age range, interests, and communication preferences)
  • Messages, attachments, and conversation context you share with Hallie
  • Live call audio while a voice call is in progress, call transcripts, and related conversation context when you use an available voice feature
  • Payment information (processed securely by a third-party payment provider; we do not store your card details)

Information collected automatically

  • Device type and phone platform
  • Usage data (such as pages visited and onboarding progress)
  • Call metadata (such as caller and recipient numbers, call time, duration, connection status, and technical identifiers)
  • Error and diagnostic data used to keep the Service working
  • Session replay data about website interactions, with form inputs masked by default
  • Referral, advertising attribution, and pageview data (such as how you found us)

2. How we use your information

We use the information we collect to:

  • Deliver and personalize your conversations with Hallie, including by processing text and live audio with AI providers
  • Transcribe voice calls, when available and used, so Hallie can respond during the call and maintain continuity afterward
  • Maintain conversation memory so Hallie can remember context over time
  • Send proactive follow-up messages based on things you’ve shared
  • Process payments and manage your subscription
  • Analyze and improve the Service
  • Measure advertising performance and show more relevant ads
  • Send service-related communications (such as billing and subscription notices)

3. What we do not do

  • We do not sell your personal data
  • We do not share your conversations for advertising purposes
  • We do not use your conversations to target advertising
  • We do not use your conversations for marketing to other users
  • We do not make your conversations visible to other users
  • We do not record or retain call audio by default

4. Service providers

We work with third-party service providers to help operate and deliver the Service, including but not limited to providers for AI and language model processing, messaging delivery, payment processing, authentication, infrastructure, analytics, error monitoring, email, and advertising measurement. These providers receive only the information necessary to perform their respective functions. Advertising measurement providers may receive limited website events and related identifiers as described above. We do not share your text or voice conversations with advertising partners.

When voice calling is available and used, voice providers may include Google (Gemini) for AI and live-audio processing, LiveKit for real-time media and call-session infrastructure, and Twilio and Linq for telephony, phone-number, and call-routing services. Live audio, transcripts, call metadata, and technical identifiers may pass through the providers needed to connect and operate the call.

5. Data retention

We retain conversation history, memory, and account data while needed to provide the Service, keep business records, comply with law, resolve disputes, and prevent abuse. You may request deletion of your data at any time by contacting us.

If you use voice calling, we retain the call transcript and memories derived from it under the same rules as other conversation history. Hallie does not record or retain call audio by default. Our voice providers may temporarily buffer or cache live audio and session data as needed to transmit the call, recover a connection, or maintain security. Those temporary copies expire under the applicable provider and service retention settings. If we offer audio recording, we will provide separate notice and obtain any consent required before enabling it.

A deletion request includes stored call transcripts and memories derived from them, subject to limited retention needed for legal, security, fraud-prevention, dispute-resolution, or backup purposes.

6. Your rights and choices

Depending on your jurisdiction, you may have the right to:

  • Access the personal data we hold about you
  • Request correction of inaccurate data
  • Request deletion of your data
  • Opt out of analytics tracking
  • Decline or stop using voice calling when it is available
  • Separately opt in to outbound voice calls and withdraw that permission
  • Cancel your subscription at any time

To exercise any of these rights, please email hello@hallie.io.

7. California residents

If you are a California resident, you may have additional rights under the California Consumer Privacy Act (CCPA), including the right to know what personal information we collect, to request its deletion, and to opt out of its sale. We do not sell personal information. To submit a request, please email hello@hallie.io.

8. Children’s privacy

Hallie is not directed at 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 promptly.

9. Security

We implement commercially reasonable technical and organizational measures to protect your information, including encryption in transit and at rest. However, no method of electronic storage or transmission is completely secure, and we cannot guarantee absolute security.

10. Changes to this policy

We may update this Privacy Policy from time to time. If we make material changes, we will notify you via text message or email. Your continued use of the Service following any changes constitutes acceptance of the updated policy.

11. Contact

If you have questions about this Privacy Policy, please contact us at hello@hallie.io.