Lockwatch — Thief Catcher

In-app purchases
4.5
73.1K reviews
Content rating
Everyone
5M+
Downloads
Content rating
Everyone
Digital Purchases
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About this app

🔐 SEE WHO TRIED TO UNLOCK YOUR PHONE

When someone enters the wrong PIN, password or pattern, Lockwatch silently emails you a front-camera photo and your phone's GPS location.

For a more complete picture, Premium adds 20-second video with sound, a back-camera photo of the surroundings, SIM change and power-on location alerts, and more alert history.

There are no ads in Lockwatch.

🚨 FREE PROTECTION

• Detects incorrect PIN, password and pattern unlock attempts
• Captures a front-camera photo
• Emails the photo with your phone's GPS location
• Works with your existing Android lock screen
• Cancels the alert if the correct code is entered within 10 seconds, so a simple mistype will not send an email

✨ MORE EVIDENCE WITH PREMIUM

• Record a 20-second front-camera video with sound
• Add a back-camera photo to show the surroundings
• Get location alerts with new SIM details when the SIM card changes
• Get a location alert after your phone powers on or restarts, before it is unlocked
• Keep up to 50 alerts in History instead of 5

🕘 BUILT FOR RELIABLE ALERTS

• Automatically retries sending alerts when mobile data or Wi-Fi becomes available
• Designed to run only when needed, minimizing battery use

ℹ️ NOTES

• Lockwatch only triggers when an unlock attempt contains at least four digits, password characters or pattern dots.
• This app uses the Device Administrator permission to monitor screen unlock attempts. Lockwatch will never use this permission to wipe your phone.
Updated on
Jun 19, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
App info and performance
Data is encrypted in transit
Data can’t be deleted

Ratings and reviews

4.5
71.5K reviews
إيفا
June 11, 2026
This is by far the BEST lock phone app I have ever used, and it's free. You can also get subscriptions for other things like back camera photos to capture surroundings, video, detect when your sim card changes, and if it was powered on or off. Definitely telling my friends and co-workers.
1 person found this review helpful
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Matt Blattel
December 20, 2023
Given the one star rating due to the fact that I purchased a year subscription and within a week I'm already having multiple failed login notifications. Yes they have emailed me and yes they show location. What they don't show is a picture, simply a blank square. And there is absolutely no link for tech support, not even on the website.
57 people found this review helpful
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A Google user
October 12, 2018
This app is really cool and is for sure worth downloading. It does exactly what it says it's going to do. I downloaded three similar apps at the same time as Lockwatch, all of them claiming to do the same thing. After testing all four apps i quickly deleted them all except Lockwatch. Lockwatch was the best in every category, beating out the competition. I've used it for a few weeks on my Galaxy S7 Edge and I have no plans on getting rid of it. I use it all the time!! Thanks!
296 people found this review helpful
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What’s new

- New back camera photo to capture surroundings (Premium feature)
- Basic protection is now free without ads