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.
For passing links, web addresses, or clipboard data between devices, Join is a great option. Setup and customization are easy and Join makes it simple to specify which notifications and actions you want to enable for each device. It even syncs SMS texts to a Chrome browser or the dedicated Windows 10 app. Unlike Pushbullet, it doesn't require a monthly subscription to use its features to the fullest. Our favorite features are its remote screenshot and screen-capture capabilities. Android App
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Sophos consistently ranks high on watchdogs such as AV-Test. In addition to perfect protection, it offers a varied feature set. The highlight: the app is totally free, even from ads (Sophos makes its money from business customers). Malware protection is based on an online database that also checks the reputation of individual apps and recommends alternatives. Droid Apps
Filled with both up-and-coming and established acts, Bandcamp is one of the most exciting music marketplaces there is. The app was initially built around streaming songs you'd already purchased on Bandcamp, but now it's a one-stop shop for digital and physical band merch. If you want to keep your finger on the pulse of music, this is an essential app. Droid App
Slack has gone from the new hotness, to controversial productivity tool, to essential office tool faster than you can say "hot take." With a familiar, instant messenger feel, it's easy to get started with Slack. But the service became popular because of its wealth of advanced features, like customizable alerts and a Do Not Disturb function. You can even host VoIP calls through Slack with your coworkers. A free account will get you started, but a monthly fee unlocks even better search tools. And be sure to install the Giphy plugin for maximum productivity. Android App
It’s a pretty self-explanatory step. The Google Play Store comes in APK format like any other Android app. You can download APKs from websites, tech blogs, and trusted people on forums or other places. However, for now, APKMirror is probably your best bet for trusted Google Play Store APKs. Here is a short tutorial for downloading the Play Store app: Android App
Your bag of holding for internet content, Pocket saves articles, images, and videos for later reading. We especially like how it reformats articles for more comfortable reading on a mobile device, and how it syncs content to your tablet, phone, and online account. With the close integration between Pocket and the Android sharing tools, you can pocket just about anything from your phone. Droid App