AppYogi Software introduces One Chat 1.0, their new social networking app developed for Mac OS. One Chat combines chat and messaging services into one simple Mac application. Bridging the gap between iOS and Android based devices, One Chat gives mobile users the opportunity to access their WhatsApp, FB messenger, Telegram, Skype, Slack messages in a quick and easy manner on their Mac. With just one app you can use multiple messaging applications. One Chat is $9.99 and can be downloaded from Mac App Store.