We all depend on our smartphones on a daily basis to do things like make phone calls, use data to access the internet, book taxis, send WhatsApp messages, and make skype calls, to name a few. It is simple to dnd filter assume that mobile phones have made our life simpler than they were previously. We all depend on our smartphones on a daily basis to do things like make phone calls, use data to access the internet, book taxis, send WhatsApp messages, and make skype calls, to name a few. It is simple to assume that mobile phones have made our life simpler than they were previously.