For developers, it could be a good source of extra income. That said, some developers have reported huge download numbers off the back of the free app of the day promotion, but no resulting increase in sales once the promotion is over. You are also likely to do better with tablet optimized apps than smartphone apps in general, as Kindle users are the primary customers.
Calibre is the giant of ebook management, and this app is the perfect (ahem) companion for it. With just a few clicks, you can add any book from your computer to your eReader over USB or Wi-Fi. You can also store your ebooks on the cloud for easy access from wherever you are. What's so surprising is how well it works, and how easy it is to use. If you've got a lot of ebooks and are ready to cast off the shackles of Amazon, this is the app for you. Android App
If you use Android, you have a Google Account, and that means you have access to the excellent Google Drive cloud storage service. With Drive, you can easily access synced files across all your devices no matter where you are. With the additional Docs, Sheets, Slides, and Photos apps from Google, Drive is the center of a productivity hub on your Android. Android App
Google Drive is a cloud storage solution available on Android where all new users get 15GB for free permanently upon signing up. You can, of course, buy more if needed. What makes Google Drive so special are the suite of Android apps that are attached to it. They include Google Docs, Google Sheets, Google Slides, Google Photos, Gmail, Google Calendar, and Google Keep. Between the office apps, the Photos app (which allows unlimited photo and video backup), and Keep Notes for note taking, you have apps for practically anything you need to do in terms of productivity. Some of the features of these apps include live collaboration, deep sharing features, and compatibility with Microsoft Office documents. Microsoft Office has a similar setup with OneDrive and Office. New Droid Apps
Despite ups and downs in the quality of its library, Netflix dominates the world of streaming TV and movies. The service also creates its own—sometimes indispensable—content, including original comedies, cartoons, dramas, and documentaries. Some of the shows have become cultural phenomena, making Netflix a must-have. Shows such as Black Mirror, Stranger Things, and The Crown (the most expensive TV show ever made) are often the conversation topics of the day. You can even download select episodes to watch offline at your leisure.
Bouncer was our pick for the best new Android app from 2018. It’s a security app with a unique premise. The app lets you grant temporary permissions to applications. So, for instance, you can let Facebook access your location long enough to check into a place, and Bouncer disables the permission once you leave Facebook. This is a great way to use all of the features of a social media app without digging into your settings to disable those permissions or giving those apps permanent access to your information. The app runs for $0.99 and should work on most (if not all) apps. It’s rumored that this could be an Android Q feature. If that’s true, then even Google really likes this app. Droid App