People often treat their Android smartphones as mini computers. With these devices, one can surf the Net, send email, watch movies, read a book, and much more without having to sit for hours in front ...

iOS: Sometimes you need to get a quick measurement of something and you probably don’t carry a ruler around, but of course, there’s an app for that. VisualRuler gives you a decent estimate of an ...

How accurate you need to be when you measure depends on the situation. To measure and draw well, you need to know how to use a ruler and understand the different units of measurement, such as ...