Remove this app from play store for devices with android 5 or older OS. Using it on my old phone has become terrible. It closes automatically a few seconds after opening the app. I looked for ALL POSSIBLE settings or features that may be causing the issue but for no good. I expect from the developer to add more features for android chrome version & make the app either STABLE or UNAVAILABLE for devices running android 5 or older. Provide private group features like Whatsapp & it will be the best.