Sonys Press conference from MWC took place end of February
If you missed it you can watch it here.
Please join the discussion here and share your thoughts on what was anounced here.
MWC 2019 discussion.
There are plenty of applications like this available in the Google Play store. Most of them however just deletes the cached data on your device and close down open applications, so it's not some magic that occurs that you can't do on your own.