Hallie FAQ

Questions

What is Hallie?

Hallie is an AI friend you text in iMessage or Google Messages. She keeps track of the people and plans you mention, brings them up later, and has one personality that stays the same from one conversation to the next.

Is Hallie a real person?

No. Hallie is AI, and every reply is generated by AI models. No person is typing her messages.

Is there an app?

There’s no app to install. Hallie is a contact in the Messages app already on your phone: iMessage on an iPhone or Google Messages on Android. New Android sign-ups need a US number for now.

How do I start?

Answer a few questions on hallie.io about how you like to text, then text her from your phone. She never texts a number that hasn’t texted her first.

Is Hallie free?

Hallie is a subscription. Depending on the offer, your first conversation is free or you start with a free trial. There’s no free plan. The price is shown before you pay, and you can cancel any time in your account.

Does Hallie remember what I tell her?

Yes. She keeps track of the people, plans and events you mention and brings them up later. She can miss a detail or get one wrong, and you correct her in the thread.

Does Hallie text first?

After you’ve texted her, yes. She starts conversations too, usually about something you told her. If you go quiet she checks in once or twice, then waits for you.

Can I call Hallie?

Yes, on a paid plan. Paid members can call her number like a regular phone call, and what you say on the call carries over to the thread.

Who can see my conversations with Hallie?

Messages are processed by outside AI providers to write her replies. We don’t sell personal data, use conversations for advertising, or show them to other users.

How do I cancel?

Log in at hallie.io/account and cancel there. You can cancel any time.

Getting started

Which phones does Hallie work on?

iPhones, through iMessage, and Android phones, through Google Messages. New Android sign-ups need a US number for now.

Does Hallie work outside the US?

On an iPhone, yes, anywhere iMessage works. She texts from a US number. On Android, new sign-ups need a US number for now.

Can I text Hallie from a Mac?

Yes. Her thread works in Messages on a Mac, the same as on your iPhone.

Can I choose Hallie’s personality or looks?

No. There is one Hallie and you meet her as she is, with a personality that stays the same from one conversation to the next. The questions at sign-up are about how you like to text, such as how casual to be and whether swearing is fine, and they shape how she texts with you.

Is Hallie on WhatsApp, Telegram or Discord?

No. She texts in iMessage and Google Messages, the Messages app already on your phone. New Android sign-ups need a US number for now.

Texting her

What can I send Hallie?

Text, photos, voice memos and links. She understands all four.

Can Hallie send photos or voice notes?

No. Her replies in Messages are text. She understands the photos, voice memos and links you send her.

Can I add Hallie to a group chat?

No. Hallie is one-on-one.

Can Hallie read my other messages?

No. She sees only what you send in her thread. She can’t read your other chats, your calendar or your email.

Is there a message limit?

A paid plan has no daily message limit.

Can I change how fast Hallie replies?

Yes. Your account has a reply pace setting with three options: responsive, relaxed or unhurried.

Can Hallie help me reply to someone else’s text?

Yes. Paste the text into her thread and she’ll help you work out an answer. She can’t see the other conversation or send the reply for you.

Can Hallie remind me of something?

Yes. Ask in the thread and she can send a one-off or recurring reminder text.

Memory

Can I see or edit what Hallie remembers?

Not as a list. There is no memory screen. You see what she has kept by what she brings up, and to change something she has wrong, you tell her in the thread.

What if Hallie gets something wrong?

Tell her in the thread. A correction in plain words is how you fix it, and she works from that.

When she texts first

How do I stop Hallie texting first?

Ask her to stop, in the thread, and she stops. You can also ask her to change when she follows up.

What happens if I stop replying?

She checks in once or twice, then waits for you. She picks the conversation back up when you text again.

Will Hallie text me before I’ve texted her?

No. She never texts a number that hasn’t texted her first.

Calls

Can Hallie call me?

No. Calls go one way: a paid member calls her number.

Does Hallie do FaceTime or video calls?

No. A call to Hallie is a regular phone call, audio only.

Are calls recorded?

They can be. Under the privacy policy, calls are transcribed so she can respond and remember the call afterward, and they may be recorded for internal quality, safety and product improvement.

Do calls cost extra?

Some call time is included with a paid plan, and you can add more in your account.

Paying and cancelling

What does Hallie cost?

Hallie is a subscription. The price is shown before you pay, and you can cancel any time in your account.

Is there a free trial?

Depending on the offer, your first conversation is free or you start with a free trial.

What happens when I cancel?

If you cancel during a free trial, access ends right away. If you cancel after you’ve been charged, billing stops and you keep access until the end of the period you paid for.

Can I get a refund?

Under the Terms of Service, if you’re not happy you can email within 14 days of your first annual charge for a full refund. Otherwise fees are non-refundable except where the law requires.

Does Hallie store my card?

No. Payment goes through a third-party payment processor, and we don’t store your card details.

Your data

How do I delete my data?

Email hello@hallie.io. A deletion request covers your conversations, what she remembers, and any call recordings and transcripts, apart from the limited amount the privacy policy says may be kept for legal, security or backup reasons.

Do you sell my data or use my conversations for ads?

No. We don’t sell personal data, use conversations for advertising, or show them to other users.

Does anyone outside Hallie process my messages?

Yes. Messages are processed by outside AI providers to write her replies.

Can I get a copy of my data?

Depending on where you live, you may have the right to access the personal data we hold. Email hello@hallie.io to ask. Your messages also stay in your own Messages app.

Who makes Hallie?

Arc Foundry, Inc., a company in San Francisco. You can reach us at hello@hallie.io.

Limits

Can Hallie get things wrong?

Yes. She can be wrong about facts she looks up, so check anything that matters. If she has a detail about you wrong, tell her in the thread and she works from the correction.

Does Hallie have an avatar?

No. She is a contact in Messages, and what you see is the thread.

Is Hallie a therapist or a crisis service?

No. Hallie is AI, and she is not a licensed therapist, counselor or healthcare provider. If you’re in crisis in the US, call or text 988, the Suicide & Crisis Lifeline, or contact your local emergency services.

Is Hallie a work or research assistant?

No. She is a friend to text. She helps you think something through or word a reply, and she can look things up. How the two differ is in AI friend vs AI assistant.

Sources

• Hallie: hallie.io homepage, Hallie Privacy Policy (updated August 24, 2026), Hallie Terms of Service (updated November 6, 2026), checked November 11, 2026