With time, you can start looking for a more advanced Excel tutorial. Some apps may involve in-app purchases. The app is given for free for as many as 5 users with no time limit. Although the mobile apps have fewer features, it is still possible to write and edit docs on-the-go with no hiccups. If you’re on the lookout for a easy and lovely app which can help you keep track of normal to-do lists, Todoist is your new obsession. When many apps provide graphs and charts, they aren’t quite as customizable as those that you can make in a spreadsheet. Recently dashboards became very common.