Amazon Underground – the new Free app of the Day feature
What does Amazon Underground mean?
This change will reflect on sales and overall popularity as Amazon is giving away paid apps and games with in-app purchases for free. Developers will be reimbursed based on actual app usage meaning if you use an app more, they will get more money. It’s pretty much a Kindle Unlimited deal, without any extra charges.
The games and apps included in this new program are not just leftovers but hot apps and tools that would drain your wallet on Google Play Store. Now they will be completely free to Underground users. All the apps that are labeled Underground “actually free” will be completely free, in-app purchases and all. Apps without the “actually free” label may present standard IAP.
In order to get this new feature all you have to do is open Amazon Shopping or the Appstore on your device and it should appear as a banner on top prompting you for an installation (You can manually install here). The Shopping app is going to be replaced by the Amazon Underground one and the Appstore one will still include cross-app links.