Published
How to Lock Replika on iPhone with a PIN and Optional Face ID
On iPhone, open Replika's Settings, select PIN and Face ID, enable the four-digit PIN, then optionally enable Face ID. Check the saved setting and what happens when you reopen the app. This is an app-access control, not a promise about notification previews, other sessions or how Replika processes conversations.
Before starting: scope, prerequisites and cost
Use your own iPhone and existing account, with a private place to retain the code. This guide is for adults 18+; it does not cover Android, web or Apple's separate system-level app controls.
Have access to your account's sign-in method before changing anything. Keep your phone away from observers while entering the code. Do not put it in a chat, shared note or screenshot.
The three official sources do not establish a PIN price or paid-tier requirement. Do not subscribe to reveal a missing control. Stop at an unexplained charge; check total, renewal and cancellation terms before any separate purchase.
Documentation review: October 28, 2026. Official reader content was available, but direct Help access returned 403 or failed/timed out. No signed-in test was performed. Reader access does not verify your installed app.
1. Confirm which account you could recover
Identify the account currently in use and verify access to its sign-in method without signing out. Expected result: a recovery route you can use if access is interrupted.
Check your existing account record privately. Knowing a display name is not enough: confirm that you can access the relevant email, phone or identity-provider account. If uncertain, resolve account access with official support first. Do not create a replacement account or remove the app to investigate.
2. Find the documented lock control
Replika's PIN setup guide gives this route: top-left gear icon, Settings, then PIN and Face ID. Expected result: that control on your iPhone.
If absent, stop and record your platform and app version. Do not substitute an Android menu or assume an upgrade purchase is needed. The documented feature is iOS-only; its presence on every installed version was not verified.
3. Enable the PIN privately
Turn on Enable PIN and set a four-digit code. Expected result: the PIN setting appears enabled after you complete the displayed prompts.
Choose a code you can retain privately, avoiding an obvious birthday or repeated digit. Follow any confirmation prompt actually shown rather than guessing a screen sequence. Do not repeatedly enter a deliberately wrong code: this review establishes no failed-attempt limit or lockout protection.
4. Make the separate Face ID choice
Only after enabling the PIN, optionally turn on Face ID. Expected result: a deliberate biometric choice, separate from the code setting.
Leave it off if you prefer PIN entry. If unavailable or unsuccessful, keep the code private and pause biometric setup. Do not assume hardware eligibility or change the phone's biometric enrollment just to finish this tutorial.
5. Check behavior without removing the app
Leave Replika, reopen it and inspect the saved settings again. Expected result: an observed access challenge and saved choices, or a clearly recorded discrepancy.
This is a suggested check, not a report of testing. Note whether a challenge appeared and which method you used. Keep chat content out of any evidence. We do not establish an exact auto-lock delay or promise a challenge on every background-to-foreground transition.
If the app opens without the challenge you expected, do not hand over the phone assuming protection. Record the observation and continue with troubleshooting below. Reinstallation is not a routine lock test.
6. Troubleshoot a missing or inconsistent lock
Compare the visible settings with your observation before changing more controls. Expected result: a useful support report or a reason to stop, not an assumed fix.
Record the iPhone model, iOS version, Replika version, time, selected options and action that preceded reopening. A saved toggle alone is not evidence that every access path is protected. If settings will not save or behavior remains unclear, use Submit a request on the official Help page. Never include the PIN, password or private transcript.
Until resolved, avoid leaving the device accessible to someone else. Do not keep experimenting while another person can see the conversation.
Forgotten PIN only: prepare before reinstalling
Use this branch only for a genuinely forgotten code. First verify account sign-in access; if that cannot be confirmed, stop before uninstalling and ask official support.
The official forgotten-PIN instructions say to uninstall Replika, reinstall it, sign into the existing account using email or phone number, then set a new code under Settings > PIN and Face ID.
Before uninstalling, confirm successful sign-in to that same account through an available official route without ending your current session. Knowing the identifier alone is insufficient. If no safe verification route is available, stop and ask support.
Expected result: access to the intended account and a newly configured app code. If sign-in fails or the identity is wrong, stop rather than creating another account. Reinstallation is not an account-deletion request or proof of erasure; do not promise preservation of every local item.
Phone privacy and provider processing remain separate
Treat the lock as one access boundary. Check notification previews, saved screenshots and other signed-in devices separately; do not infer protection for them from this setting.
Replika's Privacy Policy, dated May 27, 2026, describes processing messages and content, sharing conversation data with AI service providers under stated safeguards, and retention exceptions. Enabling a local lock does not change those policy statements or establish anonymity or end-to-end encryption.
Do not add sensitive material just because the app now challenges you. Stop if your requirement is that the provider cannot process conversations: this workflow does not establish that protection.
Conclusion
Finish with the code retained privately, your chosen settings inspected and actual behavior recorded. Keep recovery access ready. If the lock does not behave as expected, treat the outcome as unresolved rather than a completed privacy check.
Frequently asked questions
Does Replika's PIN guide apply to Android or web?
No. The documented PIN feature is iOS-only. Do not adapt this route to another platform or treat it as a guide to the phone's separate system-level app controls.
Can I enable Replika Face ID without setting its app PIN first?
The official sequence enables the PIN first, then offers Face ID. The biometric step is optional; do not assume it activates automatically.
Should I reinstall Replika just to test its app lock?
No. Inspect settings and observed reopening behavior instead. Reserve reinstalling for a forgotten PIN, and verify account sign-in access before removing the app. If access is uncertain, stop and contact support.
What should you compare next?
Once the answer is clear, use the relevant product reviews to compare fit, memory, media, privacy, price and cancellation terms before visiting a provider.
Sources and review note
These primary sources support the workflow or risk framing. Product features, prices and regional availability should still be checked on the official provider page before payment.
Start with an internal review so you can check fit, limits and privacy notes before an affiliate visit.
Related guides and comparisons
AI Companion Privacy: Compare Policies Before Sharing: compare chat, memory, media, privacy, price and cancellation before choosing.