【明報專訊】This is an era of apps (short for applications). Whether you are an IT geek, or just a regular phone user, you must have come across different kinds of apps on a regularly basis, be they on your computer or your phone. They come in handy especially when you are on the go. Apps are also the newest trend in online marketing because they can simplify the interaction with users, and more interesting features can be included so as to enhance the user experience.