How to Protect Your Privacy When Using AI Companion Apps

AI companion apps work best when you open up — and that's exactly what makes them a privacy challenge. The conversations are intimate by design, and the app's value depends on remembering what you tell it. But a 2024 Mozilla Foundation investigation found the romantic-AI category to be among the worst it had ever reviewed for privacy: most apps collected extensive personal data and shared or potentially sold it, often with little transparency, and one reportedly fired off more than 24,000 data trackers within a minute of use. You don't have to abandon these apps to stay safe. You do need a few deliberate habits. This guide walks through them, from what you reveal to how you lock the account down.

Start with what you reveal

The strongest privacy control is the one you apply before you type. Anything you share can be stored, analyzed, and potentially used to train models or fed to advertisers. So decide up front what stays out of the chat:

• Your real full name, especially paired with other identifying details.
• Where you live or work — neighborhood, employer, school, daily routine.
• Financial details — card numbers, bank info, income, anything an account-recovery question might use.
• Identifying photos, particularly anything intimate, your face plus location, or images that appear elsewhere under your real identity.
• Other people's information — names, photos, or stories that aren't yours to share.

A useful mental model: treat the companion like a stranger on a public forum who has a perfect memory. Warm, yes; trusted with your identity, no.

Use a separate identity for sign-up

How you create the account shapes everything downstream. A few setup choices dramatically shrink your exposure:

Linking the app to your main social login is convenient but ties your companion activity to your real identity and can expand what's shared between services. A throwaway email plus a strong, unique password keeps the account compartmentalized.

Read the privacy policy for three things

You don't need to read every line — look for three answers. First, retention: how long are chat logs kept, and can you delete them? Second, training: are your conversations used to train the AI, and is there an opt-out? Mozilla found that of eleven apps reviewed, only one clearly offered an opt-out for using intimate conversations in training. Third, sharing: does the app sell or share data with advertisers and third parties? If the policy is vague, missing, or clearly generic, treat that as a reason to walk away. A company that won't explain its data practices in plain language is telling you something.

Lock down app permissions

On your phone, the app can only reach what you allow. Open your device's app-permission settings and deny anything the core experience doesn't need:

1. Contacts — almost never required; denying it stops the app from mapping your social graph.
2. Location — turn off precise location unless a feature genuinely needs it.
3. Microphone and camera — grant only when actively using voice or image features, then revoke.
4. Photos — prefer "selected photos only" over full library access.
5. Notifications — fine to allow, but be aware preview text can appear on a lock screen.

Review these periodically. Apps often re-request permissions after updates.

Know how to export and delete

Before you get attached, find the off-ramp. A trustworthy app gives you self-service data export and account deletion in its settings — not a buried email request that may go unanswered. Test that you can locate it. Deleting the app from your phone does not delete your data from the company's servers, so use the in-account deletion flow when you're done, and confirm whether deletion is immediate or merely scheduled. If you've shared anything sensitive, deleting specific conversations along the way limits how much accumulates.

A quick privacy checklist

Run this before and during use:

• Sign up with an alias email and a unique password, not a social login.
• Withhold your real name, address, workplace, finances, and identifying photos.
• Restrict contacts, location, mic, camera, and photo permissions.
• Verify the policy explains retention, training opt-out, and third-party sharing.
• Confirm you can export and fully delete your account.

Bottom line

You can enjoy an AI companion without handing over your identity. The intimacy is the point — but the app doesn't need your real name, your location, your finances, or your face to provide it. Compartmentalize the account, withhold identifying details, trim permissions, and keep a clear path to export and delete. Privacy here isn't one setting you flip once; it's a handful of small habits that, taken together, keep a deeply personal experience from becoming a permanent data trail.

Sources and further reading