help | 6 Settings | Security
6.3 Security
Protect your app against unauthorized use by assigning a code.
To assign a passcode for the Contact REACH appĀ 
1 Tap .
*The menu opens.
2 Tap Settings.
3 Tap Security.
4 Enable Required Passcode.
5 Enter the desired four-digit passcode.
6 Repeat the input.
*The app is then protected by the passcode.