Secured, Confidential and Reliable Messaging.

Message your organization colleagues for free. Core4Xtreme uses your phone's Internet connection to send messages so you can avoid SMS fees.


Speak at no cost.

With voice calls, you can talk to your colleagues for free, even if they're in different different location and with free video calls, you can have face-to-face conversations for when voice or text just isn't enough.

Core4Xtreme voice and video calls use your phone's Internet connection, instead of your cell plan's voice minutes, so you don't have to worry about expensive calling charges.


Share Moments that Matter.

Send photos and videos on Core4Xtreme instantly. You can even capture the moments that matter to you most with a built-in camera. With Core4Xtreme, photos and videos send quickly even if you're on a slow connection.


Security by Default.

Core4Xtreme allowed registered organization peoples. Anonymous user registration completely restricted.

Some of your most secured information are shared on Core4Xtreme, which is why we built end-to-end encryption into the latest versions of our app. When end-to-end encrypted, your messages and calls are secured so only you and the person you're communicating with can read or listen to them, and nobody in between, not even Core4Xtreme.

You can delete your conversation after a time automatically to secure your information more.


Get alerts for every moment.

Core4Xtreme provides alert notification for new messages, calls, groups and other activities. So stay tuned with organization every moment to share and receive information.


Say it better with stickers.

Send delightful, silly, cute, weird and expressive stickers to say just about anything. Search for stickers to match your mood or explore categories like Happy and In Love.


Start group chats to stay closer.

Connect with the groups of people that matter the most, like your colleagues. With group chat, you can share messages, photos, files and videos with your organization members at once. You can also name your group, notifications, add new member in your group, leave any group at any moment and more.


One Stop Document Sharing.

Send PDFs, documents, spreadsheets, slideshows and more, without the hassle of email or file sharing apps. You can send documents up to 100 MB, so it's easy to get what you need over to who you want.

Department Management

Distance no matter.

Keep connectivity with different departments in your organization. Distance no matter, continue your meeting with different departments and offices by Core4Xtreme audio and video conference.