About this app

Poster Change Control allows you to smoothly manage and document your advertising jobs. Whether it's posters, billboards or other forms of billboard advertising, this app allows you to confirm completion in real time and record photos and comments for detailed reports. If you want to stay informed about every poster that has been changed, this is the app for you!


Get an overview of every completed task.

▶ Have every employee confirm the change with an NFC tag
▶ Record the GPS location with date and time for each job
▶ Track activities from the office in real time with ginstr web


Improve the accuracy of your data and streamline your processes.

▶ Give your client all the details they need to accept completed work
▶ Increase the quality of your services
▶ Scan the NFC tag to instantly access relevant information
▶ Data can be processed and exported in various formats
▶ Avoid errors by receiving photos and comments
▶ See the exact number and location of posters exchanged


Easy to operate

▶ Step one: scan the NFC tag to read the poster exchange data.
▶ Step two: Data can be automatically updated and stored in the cloud.
▶ Step three: You can access and manage the data from anywhere with ginstr web.


This app is provided to you free of charge. However, to use the app permanently, you must purchase a ginstr subscription.

New features

Bug fixes

App Permissions

Allows read only access to phone state, including the phone number of the device, current cellular network information, the status of any ongoing calls, and a list of any PhoneAccounts registered on the device.
Allows access to the list of accounts in the Accounts Service.
Allows an app to access approximate location.
Allows an app to access precise location.
Allows an application to initiate a phone call without going through the Dialer user interface for the user to confirm the call.
Required to be able to access the camera device.
Allows an application to record audio.
Allows an application to write to external storage.
Allows applications to access information about networks.
Allows applications to access information about Wi-Fi networks.
Allows applications to change Wi-Fi connectivity state.
Allows using PowerManager WakeLocks to keep processor from sleeping or screen from dimming.
Allows applications to open network sockets.
Allows applications to perform I/O operations over NFC.
Allows access to the vibrator.
Allows applications to connect to paired bluetooth devices.
Allows applications to discover and pair bluetooth devices.
Allows an application to call killBackgroundProcesses(String].
Allows an application to receive the ACTION_BOOT_COMPLETED that is broadcast after the system finishes booting.
This constant was deprecated in API level 21. No longer enforced.
Allows an application to request deleting packages.
Allows an application to expand or collapse the status bar.
Allows an app to create windows using the type TYPE_APPLICATION_OVERLAY, shown on top of all other apps.
Allows an application to collect component usage statistics
Declaring the permission implies intention to use the API and the user of the device can grant permission through the Settings application.
Allows an application to read from external storage.