Interested in astronomy? How about a daily astronomy picture as your wallpaper / lock screen?
With many, many options, hopefully you enjoy this app as much as I enjoyed making it! Every APOD from the last ~20 years is included, and can be shared with others.
Any suggestions / issues leave a review or email me at apod@jakelee.co.uk
This app is fully open source: https://github.com/JakeSteam/APODWallpaper