Google Play still offers downloads of Locket for Android
. That's tied with our mention from three weeks ago as the lowest price we could find for this app, which pays you one cent
every time you unlock your phone. It's currently capped at three paid unlocks per hour, but that's still up to $262.80 per year -- assuming you don't need to sleep. Click here
for more information.
Note that this app places ads on your phone's lock screen.