# Lock Kneel with Face ID or Passcode

> Require Face ID, a fingerprint, or your passcode to open Kneel.

Source: https://getkneel.com/guide/app-lock
Published: 2026-10-25

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*Private, even on an unlocked phone*

App Lock puts Face ID, a fingerprint, or your device passcode in front of Kneel. When it is on, the app locks as soon as you leave it, and a cover goes over the screen so the app switcher preview does not show what was open. The setting is saved only on your device: your partner does not see it, and it does not change their app. It is free and works the same for every role, solo included.

## Why it exists

Kneel holds private things: tasks, notes, check-ins and chastity details. App Lock makes sure that a phone left unlocked on a table does not also open them.

## Capabilities

### Face ID, fingerprint or passcode

Unlock with Face ID, Touch ID, a fingerprint, or your device passcode, whichever your phone has set up.

### Locks when you leave

Kneel locks when you switch to another app or close it. You unlock again when you come back.

### Hidden in the app switcher

A cover goes over the screen as you leave, to keep your content out of the app switcher preview.

### Safe to turn on

You unlock once to turn App Lock on. If your phone has no Face ID, fingerprint or passcode, Kneel asks you to set one up first.

### Notifications still open the right screen

Open Kneel from a notification and you go to that screen after you unlock.

## How each role uses it

### For Dominants (Dominant)

Keep the relationship private on your own phone.

- Tasks, notes and chastity details stay behind your lock
- Turn it on or off from Settings, under Security
- Your setting does not change your partner's app

### For Submissives (submissive)

Keep check-ins, proof and notes behind your own lock.

- Nobody who picks up your phone can open Kneel
- Notifications still take you to the right screen after you unlock
- Free, no Premium needed

## Use cases

- A phone that is shared with family or left on a desk
- Handing your phone to someone to show them a photo
- Keeping the app switcher preview blank