Pushbullet for Chrome, Firefox, Android, and Windows sends notifications from all your devices, allowing you to send messages (Facebook, WhatsApp), files, chat, text messages, and more in your browser.

Slack puts all your team communications in one place wherever you go with real-time messaging, file sharing, and one-to-one and group conversations.

Ashampoo Surprise Me! is a fun way to combine text messages with accompanying sounds at preset times.

Zello PTT Walkie Talkie for Android will turn your device into a responsive PTT (push to talk) walkie talkie that will work between Android, iPhone, BlackBerry, and PC.

ooVoo lets you video chat in HD quality one to one, or chat with up to 12 people at once.

Tango allows you to make video & voice calls (including international), send text messages, play games and more all for free.

Google Allo for Android enables you to enjoy a smarter and more expressive way to message with your device.

Scanner Radio lets you listen to live audio from over 5,300 police and fire scanners, weather radios, and amateur radio repeaters from around the world.

Phone Link can link your Android phone and PC to view and reply to text messages, make and receive calls, view your notifications, etc.

Google Meet (formerly Google Duo) provides a one-to-one video calling app that is simple and reliable.

Skype has the advantage of being one of the longest-running, well-known video chat clients. Also available for Windows.

Google Hangouts brings one-on-one and group conversations alive with photos, emoji, and video calls for free.

GoToMyPC gives you the freedom to go anywhere you choose and connect right to your Mac or PC.

Messenger is a fast, free, and reliable way to stay in touch on Facebook. It's just like texting. Don't forget about Majorgeeks Facebook page.