Unlock Clock helps you consider your tech usage, by counting and displaying the number of times you unlock your phone in a day. Once downloaded, you can find it under Live Wallpapers in your wallpaper chooser.
Unlock Clock is part of Digital Wellbeing Experiments, a platform to share ideas and tools that help people find a better balance with technology.
You can download and install it from https://play.google.com/store/apps/details?id=com.digitalwellbeingexperiments.unlockclock
After installing, go to the wallpaper setting > Select Live wallpaper section and select the Unlock Clock wallpaper.
You will be shocked how many times in a day do you unlock your smartphone. Mine is at average 100 times per day :(.