The insert icon is displayed in your app any time your device is paired. When your device is paired to the Insert service, it works in a special mode that enables you to easily capture screens and test inserts.
Device pairing is first established by scanning a QR code or opening a specific link on your device. Once paired, your device will stay in this mode until you disconnect it.
You can test any insert in your app when in paired mode. Inserts will be shown each time a trigger condition is met. Audience and user capping rules are not applied. While paired, you can also test individual inserts by clicking the Test on Device button located on the insert's Review page and on the insert's dashboard.
You can also capture app screens and elements when in paired mode. Capturing screens and elements allows you to define triggers and to create audience definitions based on in-app activity.
To view the active inserts in your app or to disconnect your device, simply tap on the small Insert icon.
Note that device pairing is for app owners only, and your regular app users will never see this special mode.
Test on Device mode: