If you are using 
Torrent Pro app, then you have access to the auto-shutdown feature. In this blog post, we will guide you on how to use it.
First, go to the settings of Torrent Pro app and then you will find the pro section where you can enable the auto-shutdown feature.
How Auto-Shutdown Works: To save power and data, the app will automatically shut down when it completes the download 100%. It will either close itself or go to the background without using resources. Note: If you are downloading multiple files at a time, the app will wait until all of them are completed before shutting down.