File browsing is something everyone inevitably has (or wants) to do, so you might as well do it with a capable, fantastic file browser. Solid Explorer is pretty much as good as it gets in the file explorer apps realm. It features Material Design, archiving support, support for the most popular cloud services, and even some more power user stuff like FTP, SFPT, WebDav, and SMB/CIFS support. It looks great, it’s incredibly stable, and it just works well. There is a 14-day free trial with a $2.99 price tag at the end of it. This is, by far, the best file manager on Android for most people. Droid App
This calorie counter and exercise tracker aims to help you lose weight the old-fashioned way—expending more calories than you take in. With its smart design and an extensive library of foods, it makes quickly logging the calories you take in and what you burn while exercising a snap. A barcode scanner makes it even easier to log that post-workout snack. This fitness app also plays nice with other such apps, so your data won't be tied up in just one place. MyFitnessPal won't give you a whole workout regimen, but it can make you more aware of your habits. PCMag has a full review of MyFitnessPal for the iPhone. Droid App
BB-8 is playful, personable, and true to the Star Wars™ galaxy. His unique traits begin to shine the second he is awake. Based on your interactions, BB-8 will show a range of expressions and even perk up when you give voice commands. It’s now possible to explore the galaxy with your own trusty Astromech Droid by your side. BB-8 is more than a toy - it’s your companion.
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. Android App
Dropbox pioneered the personal cloud service, where all your stuff would be available no matter what device you were using. On Android, it holds its own—even against the highly integrated Google Drive. Dropbox can also act as a seamless backup for your images, automatically uploading every photo to the cloud. It even includes some light image editing tools. If you're the type of person with lots of files already stored in Dropbox, this app is a must-have. Droid App