> For the complete documentation index, see [llms.txt](https://oten.gitbook.io/pass-support/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://oten.gitbook.io/pass-support/user-guide/authenticator-otp.md).

# Authenticator (OTP)

### 1. About OTP codes

Authenticator generates 6-digit codes that refresh automatically every few seconds.

Each code:

* Is time-limited
* Can only be used once
* Should not be shared with anyone

***

### 2. Add an account

You can add an account by scanning a QR code or entering the setup key manually.

#### Add with QR code

1. Open **Authenticator**
2. Tap **+**
3. Select **Scan QR code**
4. Scan the QR code from the service

The account will appear in your Authenticator list.

#### Add manually

1. Open **Authenticator**
2. Tap **+**
3. Select **Manual input**
4. Enter:
   * **Account name**
   * **Your key**
   * **Type of key**
5. Tap **Add**

For **Type of key**, keep **Time-based** unless the service tells you to use **Counter-based**.

***

### 3. Use an OTP code

1. Open **Authenticator**
2. Find the account you want to use
3. Enter the 6-digit code when the app or service asks for it

If the code is about to expire, wait for a new one before entering it.

***

### 4. Find an account

Use the **Search** bar to quickly find an account in your Authenticator list.

***

### 5. Transfer accounts to another device

Use **Transfer accounts** when you want to move Authenticator accounts to a new device.

#### Export accounts from this device

1. Open **Authenticator**
2. Tap the menu icon in the top-right corner
3. Select **Transfer accounts**
4. Tap **Export account**
5. Select the accounts you want to transfer
6. Tap **Next**
7. A QR code will be generated

Scan this QR code using Oten Pass on your new device.

#### Import accounts on a new device

1. Open **Authenticator** on the new device
2. Tap the menu icon in the top-right corner
3. Select **Transfer accounts**
4. Tap **Import account**
5. Scan the QR code from your old device

You will see a confirmation after the accounts are imported.

#### After transfer

After the new device imports your accounts, choose whether to:

* **Delete exported accounts** from the old device
* **Keep exported accounts** on the old device

Only delete exported accounts after confirming they work on the new device.

***

### 6. Use Privacy screen

Privacy screen helps hide OTP codes from others.

#### Turn on Privacy screen

1. Open **Authenticator**
2. Tap the menu icon in the top-right corner
3. Select **Privacy screen**
4. Turn it on

When enabled, you may need Face ID or device authentication to open Authenticator.

#### Turn off Privacy screen

1. Go to **Privacy screen**
2. Turn it off

***

### 7. Troubleshooting

#### QR code scan is not working

Check camera permission and make sure the QR code is clear.

#### OTP code is invalid

Check your device time and wait for a new code before trying again.

#### Codes are not updating

Restart the app and check your device settings.

#### Import failed

Make sure the QR code is valid, then try scanning again.

***

### 8. Important notes

* OTP codes expire quickly
* Keep your device secure
* Do not share OTP codes with anyone
* Only transfer accounts to trusted devices
* Use Privacy screen for extra protection when viewing codes