Every day, Amazon offers a different free app from the app store. Normally, these apps cost money so grabbing them for free is a bargain.
All you have to do is check out the app store each day. The free app will be listed at the top with a special banner to let you know it is the free app of the day.
It’s definitely worth checking out the app store every day to see what the free app of the day is.
Note: As the name says, the app is only free for the day. Afterwards, they go back to their normal price.