Zoom - Equip your team with tools designed to collaborate, connect, and engage with teammates and customers, no matter where you’re located, all in one platform.
Dropsource - Mobile development platform for building native iOS & Android apps
Telegram - Telegram is a messaging app with a focus on speed and security. It’s superfast, simple and free.
Siberian CMS - Siberian is an Open-Source and Free App Maker. Unlimited Push Notifications. Unlimited features. Fully Customizable. Download it and build your own app now!
WhatsApp - WhatsApp Messenger: More than 1 billion people in over 180 countries use WhatsApp to stay in touch with friends and family, anytime and anywhere.
GoodBarber - GoodBarber is a mobile app creation platform.