Lockscreen Observer

Contains ads
549 reviews
Content rating
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About this app

Are you concerned that someone might access your phone without your knowlegde? When you've just briefly left the room, while you're asleep or you lose your phone? Play it safe and find it out! Lockscreen Observer takes a picture with your front camera whenever a wrong PIN code is being entered. Receive the photo and the current location of your device via email.

• The app takes pictures with your phone's front camera whenever a false access PIN code has just been entered
• Also determines the (GPS) location if a picture is taken
• Send photos and the location via email or simply store this data on your phone
• Set the number of failed access attempts after which a picture is being taken
• Display notification in the status bar whenever a new photo is available
• Our widget will inform you as soon as a new photo is available
• App reacts to false entry of either PIN code, pattern or even your phone's finger-print sensor!
• Since most of the photos will probably be of yourself (when you mistype the code), you hereby also get a nice selfie app

Take a picture when the correct PIN code is entered
It is also possible to have the app take a picture when the correct PIN code has been entered. This is only possible though, when a wrong PIN code has been entered at least once before the correct PIN code is being entered. So, should someone have found out the correct PIN code after various failed attempts, then you'll be notified and get a picture.

Unlock attempt not detected/no picture taken?
Android requires a minimal password/pattern length of 4 characters. Therefore, a picture is only being taken when a minimum of 4 characters have been entered (pin) or 4 pads have been connected (lock pattern).

In order to uninstall the app, you'll have to disable the 'Lockscreen Monitoring' in the app settings first. This is a restriction of the Android security policies.

This app uses the Device Administrator permission.
The Device Administrator makes use of the watch-login policy to get triggered when the wrong pin is beeing entered.

Send an email for any feature-requests, question or comment:

Release notes and more:

Join the beta community to gain access to early versions:


• CAMERA: Permission to access the camera, in order to take pictures with your phone’s front camera.
• ACCESS_FINE_LOCATION (GPS): Get the location of your device, when a photo is being taken.
• WRITE_EXTERNAL_STORAGE: Photos can be shared with other apps. For this to be possible, the photos have to be temporarily saved in the external storage.
• GET_ACCOUNTS: Photos can be sent via a local Gmail account. The selection of the desired Gmail account is made in the settings of the app, for which this permission is needed.
• USE_CREDENTIALS: Required in order to send mails and connect to the smtp-server (mailserver). The connection is established with an authentication token, instead of having to authenticate with username and password.
• INTERNET and ACCESS_NETWORK_STATE: Required to send mails and display a little ad. Google Analytics also uses this permission. We use Google Analytics in order to identify potential issues. You may disable the use of Google Analytics via the app settings.
Updated on
May 17, 2018

Data safety

Developers can show information here about how their app collects and uses your data. Learn more about data safety
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549 reviews
A Google user
April 14, 2019
Good app. But the send email feature doesn't work, fix please
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A Google user
October 19, 2018
Very nice app happy so far with it
6 people found this review helpful
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A Google user
March 27, 2020
Long time date no charge
2 people found this review helpful
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What's new

- added history in tab overview
- bugfixes

- bugfixes

- material design redesign
- bugfixes and improvements

- fixed appcrash on background processing on Oreo

- minor fixes/improvements

- added more detailed info about the required device manager policy

- fixed appcrash on Lollipop when creating a notification