You can lock an app in the background in most UI's offered by the OEMs. Our next version of the app will allow you to completely shut down the app if you swipe it away. I am sure as a developer, you can circumvent this to an extend with workarounds like trying to keep your app running in the background and bring it to the front regularly, restart it at fixed intervals or something similar. Connecting through the Tile app allows your phone to connect with more than one Tile … How to Keep Apps from Running in the Background on Android. Open the Settings app. This should result in very little battery usage (less than 5% during the day). This wikiHow teaches you how to force stop an app, and prevent it from running in your Android's background. Keeping the Tile app open in the background of your device allows it to continue to keep a Bluetooth connection with your Tiles while they are in range. This is because your device connects to your Tiles through the Tile app. The general rule-of-thumb is, that inactive apps are killed in favor of currently active ones if memory is low.

Go to recent apps, look for a lock icon somewhere, or maybe drag the app you want to lock to the left or down, etc. You can allow a certain app to run in the background by going to Settings > Apps & notifications > Advanced > Special app access > Battery optimization.This will initially show you the apps which are Not Optimized - that is, the ones that can run in the background even while the phone is sleeping.

In the initial release, Tile will intermittently run background processes even if you swipe away at the app.