There are a lot of apps out there that pay lip service to security and privacy, but Signal was built from the ground up with the goal of letting people easily communicate without having to worry about being overheard. The Signal app is a complete phone and SMS client replacement (though it works just fine as a standalone app, too) for sending and receiving encrypted calls and messages. A recent update has greatly improved the app's look and feel, proving that security and usability don't have to be at odds. Droid App
LastPass is one of those must-have Android apps. It’s a password manager that lets you save your login credentials in a safe, secure way. On top of that, it can help generate nearly impossible passwords for you to use on your accounts. It’s all controlled with a master password. It has cross-platform support so you can use it on computers, mobile devices, tablets, or whatever. There are others, but LastPass always feels like it’s one step ahead. Additionally, the premium version is cheap. You can also grab LastPass Authenticator to go along with it for added security. There are other great options like 1Password, Dashlane, Bit Warden, KeepassDroid, and others that are just about as good. However, LastPass feels a little more friendly and secure (usually), especially with its extra authenticator app. Android App
After a major overhaul to this powerful password manager, its appearance finally matches its performance. With LastPass, you can access your saved passwords, secure notes, and filled forms from your Android, and you can also create new ones that sync to all your devices. The new version of the app ingeniously melds the password manager with a built-in browser, putting the app's auto-login features at the forefront. Staying safe has never been easier.
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.
Using Unified Remote, you can remotely wake up your computer from sleep using its “Wake on LAN” feature. All the necessary features of this top app of 2019 like screen mirroring, keyboard and mouse, media player controls, etc. are available within this app. You can even use it to control a Raspberry Pi or Arduino Yun. Its paid versions unlock a multitude of useful features including custom remotes and functions for Android wear. 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