Runtastic is a smartphone staple, with a simple interface that doesn’t sacrifice advanced features. The no-frills app uses your smartphone’s sensors to track metrics, such as your distance and relative pace, as well as calories burned and your heart rate. A few extra features, such as 3D mapping and a workout diary, only complement the app’s wearable integration.
The big risk is malware. In our Android app security basics article, we recommended sticking to Google Play and avoiding third-party app stores. The security policy on different Android app stores will vary; some will perform similar safety checks to Google, while others won’t. If you are going to take the risk, then consider installing one of the top Android security apps first.

Tracking your period isn't just about knowing the cycle, but also the other factors surrounding it. Eve by Glow lets you track physical and emotional states, which can lead to some important insights when you take the time to interpret your own data. Eve also boasts a vibrant community and a wealth of information about sexual health built right in. New Droid Apps
Max Eddy is a Software Analyst, taking a critical eye to the Android OS and security services. He's also PCMag's foremost authority on weather stations and digital scrapbooking software. He spends much of his time polishing his tinfoil hat and plumbing the depths of the Dark Web. Prior to PCMag, Max wrote for the International Digital Times, The... See Full Bio
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.

Your Gmail inbox is not secure. Use ProtonMail instead. This encrypted email platform offers a range of pricing options, including a free tier, so you have no excuse not to join. Security and privacy features aside, ProtonMail works like any other email app. Make sure to also check out ProtonVPN for securing your network traffic; it's an Editors' Choice for free VPNs. Droid Apps

There are many more alternative Android app stores out there, but most of them have small user bases. For developers, it’s always worth trying to widen the net and offer your apps in as many places as possible, but some of the smaller options might not be worth the time and effort. For users seeking apps, the apps available on the stores beyond those discussed above are limited. If a store doesn’t offer some unique hook to pull you in, then it’s tough to see why you’d bother.
Grammarly Keyboard corrects your grammar and spelling errors as you type. This keyboard is useful for everything from writing emails to composing social media posts to editing long-form documents. In use, Grammarly makes it easy to accept changes or access a card-based interface with more in-depth explanations of an error. It also offers a good number of visual customizations, such as a choice between a light or dark theme options and the keyboard height, as well as editing options, such as auto-correction and capitalization preferences.
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.
Most manufacturers try to entice people to use their apps and services. Some companies, like Sony, with fingers in a lot of pies, want you to commit to their ecosystem of content. As the biggest and most successful Android device manufacturer around, Samsung has been offering a range of its own services and content on all of its devices, and that includes apps. The old app was Samsung Apps, then it became S Suggest, and it was finally re-branded as Galaxy Apps in July 2014. There’s also a website that you can sign into, enabling you to browse apps and send them directly to your device. New Droid Apps
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
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