Lockwatch secretly takes a photo using the front camera when someone enters an incorrect unlock code on your phone. It then emails you a picture of the intruder along with their GPS location, without them knowing.

The app has helped recover many lost and stolen phones, and has been featured in several TV and online news stories.

Lockwatch uses Android's built-in lock screen and has a small app size, running only when an incorrect unlock code is entered.

Note: You must enter at least four digits or dots for each unlock attempt to be counted. If the correct code is entered within 10 seconds, Lockwatch will not send the email to avoid false alarms.

The app offers additional features, such as the ability to attach multiple photos and audio clips to the email, email notifications when a new SIM card is inserted or when the phone is turned on.

For help with Lockwatch, please visit https://bloketech.com/lockwatch/help.

This app uses the Device Administrator permission to monitor screen unlock attempts.